Another Hardware ID That i want to "just work". #182

adisciple50 · 2015-05-06T02:45:15Z

Im Just a Python Programmer 👍

Some Hardware Companies Like there cripplleware. Bastards.

Please Mr Penguin, Flash This Crappy Card :D

ecnepsnai · 2015-05-06T03:18:00Z

Well if you want things to "Just work" you should follow the proper procedure for submitting patches: https://github.com/torvalds/linux/blob/master/Documentation/SubmittingPatches

dma_unmap_sg() is being called twice after completing the task. Looks like this is a copy paste error when creating des driver. With this the following warn appears during boot: [ 4.210457] ------------[ cut here ]------------ [ 4.215114] WARNING: CPU: 0 PID: 0 at lib/dma-debug.c:1080 check_unmap+0x710/0x9a0() [ 4.222899] omap-des 480a5000.des: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x00000000ab2ce000] [size=8 bytes] [ 4.236785] Modules linked in: [ 4.239860] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.39-02999-g1bc045a-dirty torvalds#182 [ 4.247918] [<c001678c>] (unwind_backtrace) from [<c0012574>] (show_stack+0x10/0x14) [ 4.255710] [<c0012574>] (show_stack) from [<c05a37e8>] (dump_stack+0x84/0xb8) [ 4.262977] [<c05a37e8>] (dump_stack) from [<c0046464>] (warn_slowpath_common+0x68/0x8c) [ 4.271107] [<c0046464>] (warn_slowpath_common) from [<c004651c>] (warn_slowpath_fmt+0x30/0x40) [ 4.279854] [<c004651c>] (warn_slowpath_fmt) from [<c02d50a4>] (check_unmap+0x710/0x9a0) [ 4.287991] [<c02d50a4>] (check_unmap) from [<c02d5478>] (debug_dma_unmap_sg+0x90/0x19c) [ 4.296128] [<c02d5478>] (debug_dma_unmap_sg) from [<c04a77d8>] (omap_des_done_task+0x1cc/0x3e4) [ 4.304963] [<c04a77d8>] (omap_des_done_task) from [<c004a090>] (tasklet_action+0x84/0x124) [ 4.313370] [<c004a090>] (tasklet_action) from [<c004a4ac>] (__do_softirq+0xf0/0x20c) [ 4.321235] [<c004a4ac>] (__do_softirq) from [<c004a840>] (irq_exit+0x98/0xec) [ 4.328500] [<c004a840>] (irq_exit) from [<c000f9ac>] (handle_IRQ+0x50/0xb0) [ 4.335589] [<c000f9ac>] (handle_IRQ) from [<c0008688>] (gic_handle_irq+0x28/0x5c) Removing the duplicate call to dma_unmap_sg(). Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

dma_unmap_sg() is being called twice after completing the task. Looks like this is a copy paste error when creating des driver. With this the following warn appears during boot: [ 4.210457] ------------[ cut here ]------------ [ 4.215114] WARNING: CPU: 0 PID: 0 at lib/dma-debug.c:1080 check_unmap+0x710/0x9a0() [ 4.222899] omap-des 480a5000.des: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x00000000ab2ce000] [size=8 bytes] [ 4.236785] Modules linked in: [ 4.239860] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.39-02999-g1bc045a-dirty torvalds#182 [ 4.247918] [<c001678c>] (unwind_backtrace) from [<c0012574>] (show_stack+0x10/0x14) [ 4.255710] [<c0012574>] (show_stack) from [<c05a37e8>] (dump_stack+0x84/0xb8) [ 4.262977] [<c05a37e8>] (dump_stack) from [<c0046464>] (warn_slowpath_common+0x68/0x8c) [ 4.271107] [<c0046464>] (warn_slowpath_common) from [<c004651c>] (warn_slowpath_fmt+0x30/0x40) [ 4.279854] [<c004651c>] (warn_slowpath_fmt) from [<c02d50a4>] (check_unmap+0x710/0x9a0) [ 4.287991] [<c02d50a4>] (check_unmap) from [<c02d5478>] (debug_dma_unmap_sg+0x90/0x19c) [ 4.296128] [<c02d5478>] (debug_dma_unmap_sg) from [<c04a77d8>] (omap_des_done_task+0x1cc/0x3e4) [ 4.304963] [<c04a77d8>] (omap_des_done_task) from [<c004a090>] (tasklet_action+0x84/0x124) [ 4.313370] [<c004a090>] (tasklet_action) from [<c004a4ac>] (__do_softirq+0xf0/0x20c) [ 4.321235] [<c004a4ac>] (__do_softirq) from [<c004a840>] (irq_exit+0x98/0xec) [ 4.328500] [<c004a840>] (irq_exit) from [<c000f9ac>] (handle_IRQ+0x50/0xb0) [ 4.335589] [<c000f9ac>] (handle_IRQ) from [<c0008688>] (gic_handle_irq+0x28/0x5c) Removing the duplicate call to dma_unmap_sg(). Cc: stable@vger.kernel.org Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

dma_unmap_sg() is being called twice after completing the task. Looks like this is a copy paste error when creating des driver. With this the following warn appears during boot: [ 4.210457] ------------[ cut here ]------------ [ 4.215114] WARNING: CPU: 0 PID: 0 at lib/dma-debug.c:1080 check_unmap+0x710/0x9a0() [ 4.222899] omap-des 480a5000.des: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x00000000ab2ce000] [size=8 bytes] [ 4.236785] Modules linked in: [ 4.239860] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.39-02999-g1bc045a-dirty torvalds#182 [ 4.247918] [<c001678c>] (unwind_backtrace) from [<c0012574>] (show_stack+0x10/0x14) [ 4.255710] [<c0012574>] (show_stack) from [<c05a37e8>] (dump_stack+0x84/0xb8) [ 4.262977] [<c05a37e8>] (dump_stack) from [<c0046464>] (warn_slowpath_common+0x68/0x8c) [ 4.271107] [<c0046464>] (warn_slowpath_common) from [<c004651c>] (warn_slowpath_fmt+0x30/0x40) [ 4.279854] [<c004651c>] (warn_slowpath_fmt) from [<c02d50a4>] (check_unmap+0x710/0x9a0) [ 4.287991] [<c02d50a4>] (check_unmap) from [<c02d5478>] (debug_dma_unmap_sg+0x90/0x19c) [ 4.296128] [<c02d5478>] (debug_dma_unmap_sg) from [<c04a77d8>] (omap_des_done_task+0x1cc/0x3e4) [ 4.304963] [<c04a77d8>] (omap_des_done_task) from [<c004a090>] (tasklet_action+0x84/0x124) [ 4.313370] [<c004a090>] (tasklet_action) from [<c004a4ac>] (__do_softirq+0xf0/0x20c) [ 4.321235] [<c004a4ac>] (__do_softirq) from [<c004a840>] (irq_exit+0x98/0xec) [ 4.328500] [<c004a840>] (irq_exit) from [<c000f9ac>] (handle_IRQ+0x50/0xb0) [ 4.335589] [<c000f9ac>] (handle_IRQ) from [<c0008688>] (gic_handle_irq+0x28/0x5c) Removing the duplicate call to dma_unmap_sg(). Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

commit acb33cc upstream. dma_unmap_sg() is being called twice after completing the task. Looks like this is a copy paste error when creating des driver. With this the following warn appears during boot: [ 4.210457] ------------[ cut here ]------------ [ 4.215114] WARNING: CPU: 0 PID: 0 at lib/dma-debug.c:1080 check_unmap+0x710/0x9a0() [ 4.222899] omap-des 480a5000.des: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x00000000ab2ce000] [size=8 bytes] [ 4.236785] Modules linked in: [ 4.239860] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.39-02999-g1bc045a-dirty #182 [ 4.247918] [<c001678c>] (unwind_backtrace) from [<c0012574>] (show_stack+0x10/0x14) [ 4.255710] [<c0012574>] (show_stack) from [<c05a37e8>] (dump_stack+0x84/0xb8) [ 4.262977] [<c05a37e8>] (dump_stack) from [<c0046464>] (warn_slowpath_common+0x68/0x8c) [ 4.271107] [<c0046464>] (warn_slowpath_common) from [<c004651c>] (warn_slowpath_fmt+0x30/0x40) [ 4.279854] [<c004651c>] (warn_slowpath_fmt) from [<c02d50a4>] (check_unmap+0x710/0x9a0) [ 4.287991] [<c02d50a4>] (check_unmap) from [<c02d5478>] (debug_dma_unmap_sg+0x90/0x19c) [ 4.296128] [<c02d5478>] (debug_dma_unmap_sg) from [<c04a77d8>] (omap_des_done_task+0x1cc/0x3e4) [ 4.304963] [<c04a77d8>] (omap_des_done_task) from [<c004a090>] (tasklet_action+0x84/0x124) [ 4.313370] [<c004a090>] (tasklet_action) from [<c004a4ac>] (__do_softirq+0xf0/0x20c) [ 4.321235] [<c004a4ac>] (__do_softirq) from [<c004a840>] (irq_exit+0x98/0xec) [ 4.328500] [<c004a840>] (irq_exit) from [<c000f9ac>] (handle_IRQ+0x50/0xb0) [ 4.335589] [<c000f9ac>] (handle_IRQ) from [<c0008688>] (gic_handle_irq+0x28/0x5c) Removing the duplicate call to dma_unmap_sg(). Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

lkl: set syscall_thread_data_key to NULL instead of tls_free

Work around the following boot time crash: [ 10.456056] CPU: 1 PID: 220 Comm: systemd-udevd Tainted: G W 4.17.0-rc7-CI-CI_DRM_4040+ torvalds#182 [ 10.465828] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP, BIOS +ICLSFWR1.R00.2204.A00.1805172221 05/17/2018 [ 10.479168] RIP: 0010:acpi_ps_complete_this_op+0xa7/0x22a [ 10.484627] RSP: 0018:ffffc900003a7578 EFLAGS: 00010202 [ 10.489881] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8804abeda9c8 RCX: 0000000000000020 [ 10.497045] RDX: 0000000000000000 RSI: ffff88049e604a68 RDI: 0000000000000000 [ 10.504213] RBP: 0000000000000000 R08: ffff8804abeda9c8 R09: 0000000000000000 [ 10.511376] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000e [ 10.518542] R13: ffff88049e604a68 R14: ffff88049e604a68 R15: ffffffffa00263c2 [ 10.525713] FS: 00007ff6d85f18c0(0000) GS:ffff8804be880000(0000) knlGS:0000000000000000 [ 10.533839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.539616] CR2: 00007ff6d73cff40 CR3: 000000049f794001 CR4: 0000000000760ee0 [ 10.546783] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.553949] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.561112] PKRU: 55555554 [ 10.563849] Call Trace: [ 10.566323] acpi_ps_complete_op+0x49/0x3f1 [ 10.570537] acpi_ps_parse_loop+0x94c/0x9bb [ 10.574754] ? acpi_ds_delete_walk_state+0x113/0x131 [ 10.579750] acpi_ps_parse_aml+0x1a2/0x4af [ 10.583875] acpi_ps_execute_method+0x1e9/0x2a5 [ 10.588435] acpi_ns_evaluate+0x2e4/0x42c [ 10.592473] acpi_evaluate_object+0x1fd/0x3a8 [ 10.596873] usb_acpi_find_companion+0xee/0x1f0 [usbcore] [ 10.602319] acpi_platform_notify+0x33/0xa0 [ 10.606532] device_add+0x197/0x600 [ 10.610048] ? __init_waitqueue_head+0x36/0x50 [ 10.614529] usb_hub_create_port_device+0x11d/0x340 [usbcore] [ 10.620314] hub_probe+0x9a5/0x1010 [usbcore] [ 10.624701] ? _raw_spin_unlock_irqrestore+0x51/0x60 [ 10.629730] usb_probe_interface+0x13f/0x300 [usbcore] [ 10.634900] driver_probe_device+0x302/0x470 [ 10.639198] ? __driver_attach+0xe0/0xe0 [ 10.643147] bus_for_each_drv+0x59/0x90 [ 10.647013] __device_attach+0xb7/0x130 [ 10.650878] bus_probe_device+0x9c/0xb0 [ 10.654745] device_add+0x3c5/0x600 [ 10.658270] usb_set_configuration+0x540/0x880 [usbcore] [ 10.663621] generic_probe+0x28/0x80 [usbcore] [ 10.668097] driver_probe_device+0x302/0x470 [ 10.672393] ? __driver_attach+0xe0/0xe0 [ 10.676346] bus_for_each_drv+0x59/0x90 [ 10.680211] __device_attach+0xb7/0x130 [ 10.684076] bus_probe_device+0x9c/0xb0 [ 10.687940] device_add+0x3c5/0x600 [ 10.691464] usb_new_device+0x269/0x490 [usbcore] [ 10.696206] usb_add_hcd+0x558/0x850 [usbcore] [ 10.700682] xhci_pci_probe+0x13d/0x240 [xhci_pci] [ 10.705534] pci_device_probe+0xa1/0x130 [ 10.709484] driver_probe_device+0x302/0x470 [ 10.713784] __driver_attach+0xb9/0xe0 [ 10.717562] ? driver_probe_device+0x470/0x470 [ 10.722033] ? driver_probe_device+0x470/0x470 [ 10.726505] bus_for_each_dev+0x64/0x90 [ 10.730370] ? preempt_count_sub+0x92/0xd0 [ 10.734495] bus_add_driver+0x164/0x260 [ 10.738362] ? 0xffffffffa004e000 [ 10.741704] driver_register+0x57/0xc0 [ 10.745482] ? 0xffffffffa004e000 [ 10.748824] do_one_initcall+0x4a/0x350 [ 10.752690] ? do_init_module+0x22/0x20a [ 10.756643] ? rcu_read_lock_sched_held+0x74/0x80 [ 10.761377] ? kmem_cache_alloc_trace+0x284/0x2e0 [ 10.766114] do_init_module+0x5b/0x20a [ 10.769895] load_module+0x250d/0x2b20 [ 10.773678] ? kernel_read+0x2c/0x40 [ 10.777285] ? __se_sys_finit_module+0xaa/0xc0 [ 10.781759] __se_sys_finit_module+0xaa/0xc0 [ 10.786061] do_syscall_64+0x54/0x190 [ 10.789752] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 10.794831] RIP: 0033:0x7ff6d74664d9 [ 10.798430] RSP: 002b:00007ffd91e7dd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.806033] RAX: ffffffffffffffda RBX: 0000560519bfae20 RCX: 00007ff6d74664d9 [ 10.813195] RDX: 0000000000000000 RSI: 00007ff6d795ce23 RDI: 000000000000000e [ 10.820360] RBP: 00007ff6d795ce23 R08: 0000000000000000 R09: 0000000000000000 [ 10.827523] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000000 [ 10.834690] R13: 0000560519bf9a30 R14: 0000000000020000 R15: 000000000aba9500 [ 10.841862] Code: c2 10 5f ea 81 48 c7 c6 f0 5e ea 81 bf 7c 00 00 00 e8 0d 7c 00 00 31 ed e9 88 01 00 00 48 8b 03 31 ed 48 85 c0 +0f 84 e9 00 00 00 <4c> 8b 60 28 4d 85 e4 0f 84 dc 00 00 00 0f b7 78 0a e8 62 fe ff [ 10.860832] RIP: acpi_ps_complete_this_op+0xa7/0x22a RSP: ffffc900003a7578 [ 10.867907] ---[ end trace 3a0d2ee1129bc71e ]--- Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com>

Work around the following boot time crash: [ 10.456056] CPU: 1 PID: 220 Comm: systemd-udevd Tainted: G W 4.17.0-rc7-CI-CI_DRM_4040+ torvalds#182 [ 10.465828] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP, BIOS +ICLSFWR1.R00.2204.A00.1805172221 05/17/2018 [ 10.479168] RIP: 0010:acpi_ps_complete_this_op+0xa7/0x22a [ 10.484627] RSP: 0018:ffffc900003a7578 EFLAGS: 00010202 [ 10.489881] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8804abeda9c8 RCX: 0000000000000020 [ 10.497045] RDX: 0000000000000000 RSI: ffff88049e604a68 RDI: 0000000000000000 [ 10.504213] RBP: 0000000000000000 R08: ffff8804abeda9c8 R09: 0000000000000000 [ 10.511376] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000e [ 10.518542] R13: ffff88049e604a68 R14: ffff88049e604a68 R15: ffffffffa00263c2 [ 10.525713] FS: 00007ff6d85f18c0(0000) GS:ffff8804be880000(0000) knlGS:0000000000000000 [ 10.533839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.539616] CR2: 00007ff6d73cff40 CR3: 000000049f794001 CR4: 0000000000760ee0 [ 10.546783] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.553949] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.561112] PKRU: 55555554 [ 10.563849] Call Trace: [ 10.566323] acpi_ps_complete_op+0x49/0x3f1 [ 10.570537] acpi_ps_parse_loop+0x94c/0x9bb [ 10.574754] ? acpi_ds_delete_walk_state+0x113/0x131 [ 10.579750] acpi_ps_parse_aml+0x1a2/0x4af [ 10.583875] acpi_ps_execute_method+0x1e9/0x2a5 [ 10.588435] acpi_ns_evaluate+0x2e4/0x42c [ 10.592473] acpi_evaluate_object+0x1fd/0x3a8 [ 10.596873] usb_acpi_find_companion+0xee/0x1f0 [usbcore] [ 10.602319] acpi_platform_notify+0x33/0xa0 [ 10.606532] device_add+0x197/0x600 [ 10.610048] ? __init_waitqueue_head+0x36/0x50 [ 10.614529] usb_hub_create_port_device+0x11d/0x340 [usbcore] [ 10.620314] hub_probe+0x9a5/0x1010 [usbcore] [ 10.624701] ? _raw_spin_unlock_irqrestore+0x51/0x60 [ 10.629730] usb_probe_interface+0x13f/0x300 [usbcore] [ 10.634900] driver_probe_device+0x302/0x470 [ 10.639198] ? __driver_attach+0xe0/0xe0 [ 10.643147] bus_for_each_drv+0x59/0x90 [ 10.647013] __device_attach+0xb7/0x130 [ 10.650878] bus_probe_device+0x9c/0xb0 [ 10.654745] device_add+0x3c5/0x600 [ 10.658270] usb_set_configuration+0x540/0x880 [usbcore] [ 10.663621] generic_probe+0x28/0x80 [usbcore] [ 10.668097] driver_probe_device+0x302/0x470 [ 10.672393] ? __driver_attach+0xe0/0xe0 [ 10.676346] bus_for_each_drv+0x59/0x90 [ 10.680211] __device_attach+0xb7/0x130 [ 10.684076] bus_probe_device+0x9c/0xb0 [ 10.687940] device_add+0x3c5/0x600 [ 10.691464] usb_new_device+0x269/0x490 [usbcore] [ 10.696206] usb_add_hcd+0x558/0x850 [usbcore] [ 10.700682] xhci_pci_probe+0x13d/0x240 [xhci_pci] [ 10.705534] pci_device_probe+0xa1/0x130 [ 10.709484] driver_probe_device+0x302/0x470 [ 10.713784] __driver_attach+0xb9/0xe0 [ 10.717562] ? driver_probe_device+0x470/0x470 [ 10.722033] ? driver_probe_device+0x470/0x470 [ 10.726505] bus_for_each_dev+0x64/0x90 [ 10.730370] ? preempt_count_sub+0x92/0xd0 [ 10.734495] bus_add_driver+0x164/0x260 [ 10.738362] ? 0xffffffffa004e000 [ 10.741704] driver_register+0x57/0xc0 [ 10.745482] ? 0xffffffffa004e000 [ 10.748824] do_one_initcall+0x4a/0x350 [ 10.752690] ? do_init_module+0x22/0x20a [ 10.756643] ? rcu_read_lock_sched_held+0x74/0x80 [ 10.761377] ? kmem_cache_alloc_trace+0x284/0x2e0 [ 10.766114] do_init_module+0x5b/0x20a [ 10.769895] load_module+0x250d/0x2b20 [ 10.773678] ? kernel_read+0x2c/0x40 [ 10.777285] ? __se_sys_finit_module+0xaa/0xc0 [ 10.781759] __se_sys_finit_module+0xaa/0xc0 [ 10.786061] do_syscall_64+0x54/0x190 [ 10.789752] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 10.794831] RIP: 0033:0x7ff6d74664d9 [ 10.798430] RSP: 002b:00007ffd91e7dd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.806033] RAX: ffffffffffffffda RBX: 0000560519bfae20 RCX: 00007ff6d74664d9 [ 10.813195] RDX: 0000000000000000 RSI: 00007ff6d795ce23 RDI: 000000000000000e [ 10.820360] RBP: 00007ff6d795ce23 R08: 0000000000000000 R09: 0000000000000000 [ 10.827523] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000000 [ 10.834690] R13: 0000560519bf9a30 R14: 0000000000020000 R15: 000000000aba9500 [ 10.841862] Code: c2 10 5f ea 81 48 c7 c6 f0 5e ea 81 bf 7c 00 00 00 e8 0d 7c 00 00 31 ed e9 88 01 00 00 48 8b 03 31 ed 48 85 c0 +0f 84 e9 00 00 00 <4c> 8b 60 28 4d 85 e4 0f 84 dc 00 00 00 0f b7 78 0a e8 62 fe ff [ 10.860832] RIP: acpi_ps_complete_this_op+0xa7/0x22a RSP: ffffc900003a7578 [ 10.867907] ---[ end trace 3a0d2ee1129bc71e ]--- Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> Tested-by: Tomi Sarvela <tomi.p.sarvela@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180702135756.12159-1-imre.deak@intel.com

BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:3/2181 caller is ext4_mb_new_blocks+0x388/0xed0 CPU: 2 PID: 2181 Comm: kworker/u16:3 Not tainted 5.7.0+ torvalds#182 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Workqueue: writeback wb_workfn (flush-8:0) Call Trace: dump_stack+0xb9/0xfc debug_smp_processor_id+0xc8/0xd0 ext4_mb_new_blocks+0x388/0xed0 ext4_ext_map_blocks+0xa92/0xff0 ext4_map_blocks+0x34e/0x580 ext4_writepages+0xa28/0x11b0 do_writepages+0x46/0xe0 __writeback_single_inode+0x5f/0x6b0 writeback_sb_inodes+0x290/0x620 __writeback_inodes_wb+0x62/0xb0 wb_writeback+0x36c/0x520 wb_workfn+0x319/0x680 process_one_work+0x271/0x640 worker_thread+0x3a/0x3a0 kthread+0x14e/0x170 ret_from_fork+0x27/0x40 Disable preemption before accessing discard_pa_seq. Fixes: 07b5b8e ("ext4: mballoc: introduce pcpu seqcnt for freeing PA to improve ENOSPC handling") Signed-off-by: YueHaibing <yuehaibing@huawei.com>

Work around the following boot time crash: [ 10.456056] CPU: 1 PID: 220 Comm: systemd-udevd Tainted: G W 4.17.0-rc7-CI-CI_DRM_4040+ torvalds#182 [ 10.465828] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP, BIOS +ICLSFWR1.R00.2204.A00.1805172221 05/17/2018 [ 10.479168] RIP: 0010:acpi_ps_complete_this_op+0xa7/0x22a [ 10.484627] RSP: 0018:ffffc900003a7578 EFLAGS: 00010202 [ 10.489881] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8804abeda9c8 RCX: 0000000000000020 [ 10.497045] RDX: 0000000000000000 RSI: ffff88049e604a68 RDI: 0000000000000000 [ 10.504213] RBP: 0000000000000000 R08: ffff8804abeda9c8 R09: 0000000000000000 [ 10.511376] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000e [ 10.518542] R13: ffff88049e604a68 R14: ffff88049e604a68 R15: ffffffffa00263c2 [ 10.525713] FS: 00007ff6d85f18c0(0000) GS:ffff8804be880000(0000) knlGS:0000000000000000 [ 10.533839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.539616] CR2: 00007ff6d73cff40 CR3: 000000049f794001 CR4: 0000000000760ee0 [ 10.546783] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.553949] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.561112] PKRU: 55555554 [ 10.563849] Call Trace: [ 10.566323] acpi_ps_complete_op+0x49/0x3f1 [ 10.570537] acpi_ps_parse_loop+0x94c/0x9bb [ 10.574754] ? acpi_ds_delete_walk_state+0x113/0x131 [ 10.579750] acpi_ps_parse_aml+0x1a2/0x4af [ 10.583875] acpi_ps_execute_method+0x1e9/0x2a5 [ 10.588435] acpi_ns_evaluate+0x2e4/0x42c [ 10.592473] acpi_evaluate_object+0x1fd/0x3a8 [ 10.596873] usb_acpi_find_companion+0xee/0x1f0 [usbcore] [ 10.602319] acpi_platform_notify+0x33/0xa0 [ 10.606532] device_add+0x197/0x600 [ 10.610048] ? __init_waitqueue_head+0x36/0x50 [ 10.614529] usb_hub_create_port_device+0x11d/0x340 [usbcore] [ 10.620314] hub_probe+0x9a5/0x1010 [usbcore] [ 10.624701] ? _raw_spin_unlock_irqrestore+0x51/0x60 [ 10.629730] usb_probe_interface+0x13f/0x300 [usbcore] [ 10.634900] driver_probe_device+0x302/0x470 [ 10.639198] ? __driver_attach+0xe0/0xe0 [ 10.643147] bus_for_each_drv+0x59/0x90 [ 10.647013] __device_attach+0xb7/0x130 [ 10.650878] bus_probe_device+0x9c/0xb0 [ 10.654745] device_add+0x3c5/0x600 [ 10.658270] usb_set_configuration+0x540/0x880 [usbcore] [ 10.663621] generic_probe+0x28/0x80 [usbcore] [ 10.668097] driver_probe_device+0x302/0x470 [ 10.672393] ? __driver_attach+0xe0/0xe0 [ 10.676346] bus_for_each_drv+0x59/0x90 [ 10.680211] __device_attach+0xb7/0x130 [ 10.684076] bus_probe_device+0x9c/0xb0 [ 10.687940] device_add+0x3c5/0x600 [ 10.691464] usb_new_device+0x269/0x490 [usbcore] [ 10.696206] usb_add_hcd+0x558/0x850 [usbcore] [ 10.700682] xhci_pci_probe+0x13d/0x240 [xhci_pci] [ 10.705534] pci_device_probe+0xa1/0x130 [ 10.709484] driver_probe_device+0x302/0x470 [ 10.713784] __driver_attach+0xb9/0xe0 [ 10.717562] ? driver_probe_device+0x470/0x470 [ 10.722033] ? driver_probe_device+0x470/0x470 [ 10.726505] bus_for_each_dev+0x64/0x90 [ 10.730370] ? preempt_count_sub+0x92/0xd0 [ 10.734495] bus_add_driver+0x164/0x260 [ 10.738362] ? 0xffffffffa004e000 [ 10.741704] driver_register+0x57/0xc0 [ 10.745482] ? 0xffffffffa004e000 [ 10.748824] do_one_initcall+0x4a/0x350 [ 10.752690] ? do_init_module+0x22/0x20a [ 10.756643] ? rcu_read_lock_sched_held+0x74/0x80 [ 10.761377] ? kmem_cache_alloc_trace+0x284/0x2e0 [ 10.766114] do_init_module+0x5b/0x20a [ 10.769895] load_module+0x250d/0x2b20 [ 10.773678] ? kernel_read+0x2c/0x40 [ 10.777285] ? __se_sys_finit_module+0xaa/0xc0 [ 10.781759] __se_sys_finit_module+0xaa/0xc0 [ 10.786061] do_syscall_64+0x54/0x190 [ 10.789752] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 10.794831] RIP: 0033:0x7ff6d74664d9 [ 10.798430] RSP: 002b:00007ffd91e7dd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.806033] RAX: ffffffffffffffda RBX: 0000560519bfae20 RCX: 00007ff6d74664d9 [ 10.813195] RDX: 0000000000000000 RSI: 00007ff6d795ce23 RDI: 000000000000000e [ 10.820360] RBP: 00007ff6d795ce23 R08: 0000000000000000 R09: 0000000000000000 [ 10.827523] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000000 [ 10.834690] R13: 0000560519bf9a30 R14: 0000000000020000 R15: 000000000aba9500 [ 10.841862] Code: c2 10 5f ea 81 48 c7 c6 f0 5e ea 81 bf 7c 00 00 00 e8 0d 7c 00 00 31 ed e9 88 01 00 00 48 8b 03 31 ed 48 85 c0 +0f 84 e9 00 00 00 <4c> 8b 60 28 4d 85 e4 0f 84 dc 00 00 00 0f b7 78 0a e8 62 fe ff [ 10.860832] RIP: acpi_ps_complete_this_op+0xa7/0x22a RSP: ffffc900003a7578 [ 10.867907] ---[ end trace 3a0d2ee1129bc71e ]--- Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> Tested-by: Tomi Sarvela <tomi.p.sarvela@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180702135756.12159-1-imre.deak@intel.com

[ Commit msg tbd ] todo: - selftest with old/legacy tc api - selftest with chaining & termination # ./vmtest.sh -- ./test_progs -t tc_link [...] [ 1.486605] clocksource: Switched to clocksource tsc ./test_progs -t tc_link [ 1.542394] bpf_testmod: loading out-of-tree module taints kernel. [ 1.543803] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel torvalds#179 tc_link_base:OK torvalds#180 tc_link_mix:OK torvalds#181 tc_link_opts:OK torvalds#182 tc_link_run:OK Summary: 4/0 PASSED, 0 SKIPPED, 0 FAILED [...] Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a big batch of selftest to extend test_progs with various tc link, attach ops and old-style tc BPF attachments via libbpf APIs. Also test multi-program attachments including mixing the various attach options: # ./test_progs -t tc_link torvalds#179 tc_link_base:OK torvalds#180 tc_link_detach:OK torvalds#181 tc_link_mix:OK torvalds#182 tc_link_opts:OK torvalds#183 tc_link_run_base:OK torvalds#184 tc_link_run_chain:OK Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED All new and existing test cases pass. Co-developed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org> Co-developed-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a big batch of selftest to extend test_progs with various tc link, attach ops and old-style tc BPF attachments via libbpf APIs. Also test multi-program attachments including mixing the various attach options: # ./test_progs -t tc_link torvalds#179 tc_link_base:OK torvalds#180 tc_link_detach:OK torvalds#181 tc_link_mix:OK torvalds#182 tc_link_opts:OK torvalds#183 tc_link_run_base:OK torvalds#184 tc_link_run_chain:OK Summary: 6/0 PASSED, 0 SKIPPED, 0 FAILED All new and existing test cases pass. Co-developed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Work around the following boot time crash: [ 10.456056] CPU: 1 PID: 220 Comm: systemd-udevd Tainted: G W 4.17.0-rc7-CI-CI_DRM_4040+ torvalds#182 [ 10.465828] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP, BIOS +ICLSFWR1.R00.2204.A00.1805172221 05/17/2018 [ 10.479168] RIP: 0010:acpi_ps_complete_this_op+0xa7/0x22a [ 10.484627] RSP: 0018:ffffc900003a7578 EFLAGS: 00010202 [ 10.489881] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8804abeda9c8 RCX: 0000000000000020 [ 10.497045] RDX: 0000000000000000 RSI: ffff88049e604a68 RDI: 0000000000000000 [ 10.504213] RBP: 0000000000000000 R08: ffff8804abeda9c8 R09: 0000000000000000 [ 10.511376] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000e [ 10.518542] R13: ffff88049e604a68 R14: ffff88049e604a68 R15: ffffffffa00263c2 [ 10.525713] FS: 00007ff6d85f18c0(0000) GS:ffff8804be880000(0000) knlGS:0000000000000000 [ 10.533839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.539616] CR2: 00007ff6d73cff40 CR3: 000000049f794001 CR4: 0000000000760ee0 [ 10.546783] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.553949] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.561112] PKRU: 55555554 [ 10.563849] Call Trace: [ 10.566323] acpi_ps_complete_op+0x49/0x3f1 [ 10.570537] acpi_ps_parse_loop+0x94c/0x9bb [ 10.574754] ? acpi_ds_delete_walk_state+0x113/0x131 [ 10.579750] acpi_ps_parse_aml+0x1a2/0x4af [ 10.583875] acpi_ps_execute_method+0x1e9/0x2a5 [ 10.588435] acpi_ns_evaluate+0x2e4/0x42c [ 10.592473] acpi_evaluate_object+0x1fd/0x3a8 [ 10.596873] usb_acpi_find_companion+0xee/0x1f0 [usbcore] [ 10.602319] acpi_platform_notify+0x33/0xa0 [ 10.606532] device_add+0x197/0x600 [ 10.610048] ? __init_waitqueue_head+0x36/0x50 [ 10.614529] usb_hub_create_port_device+0x11d/0x340 [usbcore] [ 10.620314] hub_probe+0x9a5/0x1010 [usbcore] [ 10.624701] ? _raw_spin_unlock_irqrestore+0x51/0x60 [ 10.629730] usb_probe_interface+0x13f/0x300 [usbcore] [ 10.634900] driver_probe_device+0x302/0x470 [ 10.639198] ? __driver_attach+0xe0/0xe0 [ 10.643147] bus_for_each_drv+0x59/0x90 [ 10.647013] __device_attach+0xb7/0x130 [ 10.650878] bus_probe_device+0x9c/0xb0 [ 10.654745] device_add+0x3c5/0x600 [ 10.658270] usb_set_configuration+0x540/0x880 [usbcore] [ 10.663621] generic_probe+0x28/0x80 [usbcore] [ 10.668097] driver_probe_device+0x302/0x470 [ 10.672393] ? __driver_attach+0xe0/0xe0 [ 10.676346] bus_for_each_drv+0x59/0x90 [ 10.680211] __device_attach+0xb7/0x130 [ 10.684076] bus_probe_device+0x9c/0xb0 [ 10.687940] device_add+0x3c5/0x600 [ 10.691464] usb_new_device+0x269/0x490 [usbcore] [ 10.696206] usb_add_hcd+0x558/0x850 [usbcore] [ 10.700682] xhci_pci_probe+0x13d/0x240 [xhci_pci] [ 10.705534] pci_device_probe+0xa1/0x130 [ 10.709484] driver_probe_device+0x302/0x470 [ 10.713784] __driver_attach+0xb9/0xe0 [ 10.717562] ? driver_probe_device+0x470/0x470 [ 10.722033] ? driver_probe_device+0x470/0x470 [ 10.726505] bus_for_each_dev+0x64/0x90 [ 10.730370] ? preempt_count_sub+0x92/0xd0 [ 10.734495] bus_add_driver+0x164/0x260 [ 10.738362] ? 0xffffffffa004e000 [ 10.741704] driver_register+0x57/0xc0 [ 10.745482] ? 0xffffffffa004e000 [ 10.748824] do_one_initcall+0x4a/0x350 [ 10.752690] ? do_init_module+0x22/0x20a [ 10.756643] ? rcu_read_lock_sched_held+0x74/0x80 [ 10.761377] ? kmem_cache_alloc_trace+0x284/0x2e0 [ 10.766114] do_init_module+0x5b/0x20a [ 10.769895] load_module+0x250d/0x2b20 [ 10.773678] ? kernel_read+0x2c/0x40 [ 10.777285] ? __se_sys_finit_module+0xaa/0xc0 [ 10.781759] __se_sys_finit_module+0xaa/0xc0 [ 10.786061] do_syscall_64+0x54/0x190 [ 10.789752] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 10.794831] RIP: 0033:0x7ff6d74664d9 [ 10.798430] RSP: 002b:00007ffd91e7dd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.806033] RAX: ffffffffffffffda RBX: 0000560519bfae20 RCX: 00007ff6d74664d9 [ 10.813195] RDX: 0000000000000000 RSI: 00007ff6d795ce23 RDI: 000000000000000e [ 10.820360] RBP: 00007ff6d795ce23 R08: 0000000000000000 R09: 0000000000000000 [ 10.827523] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000000 [ 10.834690] R13: 0000560519bf9a30 R14: 0000000000020000 R15: 000000000aba9500 [ 10.841862] Code: c2 10 5f ea 81 48 c7 c6 f0 5e ea 81 bf 7c 00 00 00 e8 0d 7c 00 00 31 ed e9 88 01 00 00 48 8b 03 31 ed 48 85 c0 +0f 84 e9 00 00 00 <4c> 8b 60 28 4d 85 e4 0f 84 dc 00 00 00 0f b7 78 0a e8 62 fe ff [ 10.860832] RIP: acpi_ps_complete_this_op+0xa7/0x22a RSP: ffffc900003a7578 [ 10.867907] ---[ end trace 3a0d2ee1129bc71e ]--- Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> Tested-by: Tomi Sarvela <tomi.p.sarvela@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180702135756.12159-1-imre.deak@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Work around the following boot time crash: [ 10.456056] CPU: 1 PID: 220 Comm: systemd-udevd Tainted: G W 4.17.0-rc7-CI-CI_DRM_4040+ torvalds#182 [ 10.465828] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP, BIOS +ICLSFWR1.R00.2204.A00.1805172221 05/17/2018 [ 10.479168] RIP: 0010:acpi_ps_complete_this_op+0xa7/0x22a [ 10.484627] RSP: 0018:ffffc900003a7578 EFLAGS: 00010202 [ 10.489881] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8804abeda9c8 RCX: 0000000000000020 [ 10.497045] RDX: 0000000000000000 RSI: ffff88049e604a68 RDI: 0000000000000000 [ 10.504213] RBP: 0000000000000000 R08: ffff8804abeda9c8 R09: 0000000000000000 [ 10.511376] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000e [ 10.518542] R13: ffff88049e604a68 R14: ffff88049e604a68 R15: ffffffffa00263c2 [ 10.525713] FS: 00007ff6d85f18c0(0000) GS:ffff8804be880000(0000) knlGS:0000000000000000 [ 10.533839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.539616] CR2: 00007ff6d73cff40 CR3: 000000049f794001 CR4: 0000000000760ee0 [ 10.546783] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.553949] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.561112] PKRU: 55555554 [ 10.563849] Call Trace: [ 10.566323] acpi_ps_complete_op+0x49/0x3f1 [ 10.570537] acpi_ps_parse_loop+0x94c/0x9bb [ 10.574754] ? acpi_ds_delete_walk_state+0x113/0x131 [ 10.579750] acpi_ps_parse_aml+0x1a2/0x4af [ 10.583875] acpi_ps_execute_method+0x1e9/0x2a5 [ 10.588435] acpi_ns_evaluate+0x2e4/0x42c [ 10.592473] acpi_evaluate_object+0x1fd/0x3a8 [ 10.596873] usb_acpi_find_companion+0xee/0x1f0 [usbcore] [ 10.602319] acpi_platform_notify+0x33/0xa0 [ 10.606532] device_add+0x197/0x600 [ 10.610048] ? __init_waitqueue_head+0x36/0x50 [ 10.614529] usb_hub_create_port_device+0x11d/0x340 [usbcore] [ 10.620314] hub_probe+0x9a5/0x1010 [usbcore] [ 10.624701] ? _raw_spin_unlock_irqrestore+0x51/0x60 [ 10.629730] usb_probe_interface+0x13f/0x300 [usbcore] [ 10.634900] driver_probe_device+0x302/0x470 [ 10.639198] ? __driver_attach+0xe0/0xe0 [ 10.643147] bus_for_each_drv+0x59/0x90 [ 10.647013] __device_attach+0xb7/0x130 [ 10.650878] bus_probe_device+0x9c/0xb0 [ 10.654745] device_add+0x3c5/0x600 [ 10.658270] usb_set_configuration+0x540/0x880 [usbcore] [ 10.663621] generic_probe+0x28/0x80 [usbcore] [ 10.668097] driver_probe_device+0x302/0x470 [ 10.672393] ? __driver_attach+0xe0/0xe0 [ 10.676346] bus_for_each_drv+0x59/0x90 [ 10.680211] __device_attach+0xb7/0x130 [ 10.684076] bus_probe_device+0x9c/0xb0 [ 10.687940] device_add+0x3c5/0x600 [ 10.691464] usb_new_device+0x269/0x490 [usbcore] [ 10.696206] usb_add_hcd+0x558/0x850 [usbcore] [ 10.700682] xhci_pci_probe+0x13d/0x240 [xhci_pci] [ 10.705534] pci_device_probe+0xa1/0x130 [ 10.709484] driver_probe_device+0x302/0x470 [ 10.713784] __driver_attach+0xb9/0xe0 [ 10.717562] ? driver_probe_device+0x470/0x470 [ 10.722033] ? driver_probe_device+0x470/0x470 [ 10.726505] bus_for_each_dev+0x64/0x90 [ 10.730370] ? preempt_count_sub+0x92/0xd0 [ 10.734495] bus_add_driver+0x164/0x260 [ 10.738362] ? 0xffffffffa004e000 [ 10.741704] driver_register+0x57/0xc0 [ 10.745482] ? 0xffffffffa004e000 [ 10.748824] do_one_initcall+0x4a/0x350 [ 10.752690] ? do_init_module+0x22/0x20a [ 10.756643] ? rcu_read_lock_sched_held+0x74/0x80 [ 10.761377] ? kmem_cache_alloc_trace+0x284/0x2e0 [ 10.766114] do_init_module+0x5b/0x20a [ 10.769895] load_module+0x250d/0x2b20 [ 10.773678] ? kernel_read+0x2c/0x40 [ 10.777285] ? __se_sys_finit_module+0xaa/0xc0 [ 10.781759] __se_sys_finit_module+0xaa/0xc0 [ 10.786061] do_syscall_64+0x54/0x190 [ 10.789752] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 10.794831] RIP: 0033:0x7ff6d74664d9 [ 10.798430] RSP: 002b:00007ffd91e7dd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.806033] RAX: ffffffffffffffda RBX: 0000560519bfae20 RCX: 00007ff6d74664d9 [ 10.813195] RDX: 0000000000000000 RSI: 00007ff6d795ce23 RDI: 000000000000000e [ 10.820360] RBP: 00007ff6d795ce23 R08: 0000000000000000 R09: 0000000000000000 [ 10.827523] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000000 [ 10.834690] R13: 0000560519bf9a30 R14: 0000000000020000 R15: 000000000aba9500 [ 10.841862] Code: c2 10 5f ea 81 48 c7 c6 f0 5e ea 81 bf 7c 00 00 00 e8 0d 7c 00 00 31 ed e9 88 01 00 00 48 8b 03 31 ed 48 85 c0 +0f 84 e9 00 00 00 <4c> 8b 60 28 4d 85 e4 0f 84 dc 00 00 00 0f b7 78 0a e8 62 fe ff [ 10.860832] RIP: acpi_ps_complete_this_op+0xa7/0x22a RSP: ffffc900003a7578 [ 10.867907] ---[ end trace 3a0d2ee1129bc71e ]--- References: https://gitlab.freedesktop.org/drm/intel/-/issues/8033 Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> Tested-by: Tomi Sarvela <tomi.p.sarvela@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180702135756.12159-1-imre.deak@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Somehow recently I frequently hit the following test failure with either ./test_progs or ./test_progs-cpuv4: serial_test_ptr_untrusted:PASS:skel_open 0 nsec serial_test_ptr_untrusted:PASS:lsm_attach 0 nsec serial_test_ptr_untrusted:PASS:raw_tp_attach 0 nsec serial_test_ptr_untrusted:FAIL:cmp_tp_name unexpected cmp_tp_name: actual -115 != expected 0 torvalds#182 ptr_untrusted:FAIL Further investigation found the failure is due to bpf_probe_read_user_str() where reading user-level string attr->raw_tracepoint.name is not successfully, most likely due to the string itself still in disk and not populated into memory yet. One solution is do a printf() call of the string before doing bpf syscall which will force the raw_tracepoint.name into memory. But I think a more robust solution is to use bpf_copy_from_user() which is used in sleepable program and can tolerate page fault, and the fix here used the latter approach. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20240204194452.2785936-1-yonghong.song@linux.dev

Work around the following boot time crash: [ 10.456056] CPU: 1 PID: 220 Comm: systemd-udevd Tainted: G W 4.17.0-rc7-CI-CI_DRM_4040+ torvalds#182 [ 10.465828] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP, BIOS +ICLSFWR1.R00.2204.A00.1805172221 05/17/2018 [ 10.479168] RIP: 0010:acpi_ps_complete_this_op+0xa7/0x22a [ 10.484627] RSP: 0018:ffffc900003a7578 EFLAGS: 00010202 [ 10.489881] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8804abeda9c8 RCX: 0000000000000020 [ 10.497045] RDX: 0000000000000000 RSI: ffff88049e604a68 RDI: 0000000000000000 [ 10.504213] RBP: 0000000000000000 R08: ffff8804abeda9c8 R09: 0000000000000000 [ 10.511376] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000e [ 10.518542] R13: ffff88049e604a68 R14: ffff88049e604a68 R15: ffffffffa00263c2 [ 10.525713] FS: 00007ff6d85f18c0(0000) GS:ffff8804be880000(0000) knlGS:0000000000000000 [ 10.533839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.539616] CR2: 00007ff6d73cff40 CR3: 000000049f794001 CR4: 0000000000760ee0 [ 10.546783] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 10.553949] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 10.561112] PKRU: 55555554 [ 10.563849] Call Trace: [ 10.566323] acpi_ps_complete_op+0x49/0x3f1 [ 10.570537] acpi_ps_parse_loop+0x94c/0x9bb [ 10.574754] ? acpi_ds_delete_walk_state+0x113/0x131 [ 10.579750] acpi_ps_parse_aml+0x1a2/0x4af [ 10.583875] acpi_ps_execute_method+0x1e9/0x2a5 [ 10.588435] acpi_ns_evaluate+0x2e4/0x42c [ 10.592473] acpi_evaluate_object+0x1fd/0x3a8 [ 10.596873] usb_acpi_find_companion+0xee/0x1f0 [usbcore] [ 10.602319] acpi_platform_notify+0x33/0xa0 [ 10.606532] device_add+0x197/0x600 [ 10.610048] ? __init_waitqueue_head+0x36/0x50 [ 10.614529] usb_hub_create_port_device+0x11d/0x340 [usbcore] [ 10.620314] hub_probe+0x9a5/0x1010 [usbcore] [ 10.624701] ? _raw_spin_unlock_irqrestore+0x51/0x60 [ 10.629730] usb_probe_interface+0x13f/0x300 [usbcore] [ 10.634900] driver_probe_device+0x302/0x470 [ 10.639198] ? __driver_attach+0xe0/0xe0 [ 10.643147] bus_for_each_drv+0x59/0x90 [ 10.647013] __device_attach+0xb7/0x130 [ 10.650878] bus_probe_device+0x9c/0xb0 [ 10.654745] device_add+0x3c5/0x600 [ 10.658270] usb_set_configuration+0x540/0x880 [usbcore] [ 10.663621] generic_probe+0x28/0x80 [usbcore] [ 10.668097] driver_probe_device+0x302/0x470 [ 10.672393] ? __driver_attach+0xe0/0xe0 [ 10.676346] bus_for_each_drv+0x59/0x90 [ 10.680211] __device_attach+0xb7/0x130 [ 10.684076] bus_probe_device+0x9c/0xb0 [ 10.687940] device_add+0x3c5/0x600 [ 10.691464] usb_new_device+0x269/0x490 [usbcore] [ 10.696206] usb_add_hcd+0x558/0x850 [usbcore] [ 10.700682] xhci_pci_probe+0x13d/0x240 [xhci_pci] [ 10.705534] pci_device_probe+0xa1/0x130 [ 10.709484] driver_probe_device+0x302/0x470 [ 10.713784] __driver_attach+0xb9/0xe0 [ 10.717562] ? driver_probe_device+0x470/0x470 [ 10.722033] ? driver_probe_device+0x470/0x470 [ 10.726505] bus_for_each_dev+0x64/0x90 [ 10.730370] ? preempt_count_sub+0x92/0xd0 [ 10.734495] bus_add_driver+0x164/0x260 [ 10.738362] ? 0xffffffffa004e000 [ 10.741704] driver_register+0x57/0xc0 [ 10.745482] ? 0xffffffffa004e000 [ 10.748824] do_one_initcall+0x4a/0x350 [ 10.752690] ? do_init_module+0x22/0x20a [ 10.756643] ? rcu_read_lock_sched_held+0x74/0x80 [ 10.761377] ? kmem_cache_alloc_trace+0x284/0x2e0 [ 10.766114] do_init_module+0x5b/0x20a [ 10.769895] load_module+0x250d/0x2b20 [ 10.773678] ? kernel_read+0x2c/0x40 [ 10.777285] ? __se_sys_finit_module+0xaa/0xc0 [ 10.781759] __se_sys_finit_module+0xaa/0xc0 [ 10.786061] do_syscall_64+0x54/0x190 [ 10.789752] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 10.794831] RIP: 0033:0x7ff6d74664d9 [ 10.798430] RSP: 002b:00007ffd91e7dd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.806033] RAX: ffffffffffffffda RBX: 0000560519bfae20 RCX: 00007ff6d74664d9 [ 10.813195] RDX: 0000000000000000 RSI: 00007ff6d795ce23 RDI: 000000000000000e [ 10.820360] RBP: 00007ff6d795ce23 R08: 0000000000000000 R09: 0000000000000000 [ 10.827523] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000000 [ 10.834690] R13: 0000560519bf9a30 R14: 0000000000020000 R15: 000000000aba9500 [ 10.841862] Code: c2 10 5f ea 81 48 c7 c6 f0 5e ea 81 bf 7c 00 00 00 e8 0d 7c 00 00 31 ed e9 88 01 00 00 48 8b 03 31 ed 48 85 c0 +0f 84 e9 00 00 00 <4c> 8b 60 28 4d 85 e4 0f 84 dc 00 00 00 0f b7 78 0a e8 62 fe ff [ 10.860832] RIP: acpi_ps_complete_this_op+0xa7/0x22a RSP: ffffc900003a7578 [ 10.867907] ---[ end trace 3a0d2ee1129bc71e ]--- References: https://gitlab.freedesktop.org/drm/intel/-/issues/8033 Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> Tested-by: Tomi Sarvela <tomi.p.sarvela@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180702135756.12159-1-imre.deak@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

deddokatana added 2 commits May 6, 2015 02:36

Added a definition to /* Atheros 3011 with sflash firmware */

c690f7f

Some Hardware Companies Like there cripplleware. Bastards.

Added a definition to /* Atheros 3011 with sflash firmware */

c3902fe

Please Mr Penguin, Flash This Crappy Card :D

laijs pushed a commit to laijs/linux that referenced this pull request Feb 13, 2017

Merge pull request torvalds#182 from liuyuan10/freeirq

35df18a

lkl: set syscall_thread_data_key to NULL instead of tls_free

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Another Hardware ID That i want to "just work". #182

Another Hardware ID That i want to "just work". #182

adisciple50 commented May 6, 2015

ecnepsnai commented May 6, 2015

Another Hardware ID That i want to "just work". #182

Are you sure you want to change the base?

Another Hardware ID That i want to "just work". #182

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adisciple50 commented May 6, 2015

ecnepsnai commented May 6, 2015