Thomas Error Compiling #36
Comments
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Check if that file is present, otherwise you downloaded incomplete source |
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how about this? drivers/soc/qcom/subsystem_restart.c: In function 'subsys_register': |
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U have to edit makefile to ignore some basic warnings. Refer this |
10 similar comments
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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U have to edit makefile to ignore some basic warnings. Refer this |
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I managed to work on the errors present in the kernel source and have made it to compile. I can link you to my alpha source code 🐰 I have used the original defconfig (msm8916_defconfig) for my build which seems pretty bloated. As I don't have a device, I can't do much work for this device. I hope my kernel source atleast acts a base reference for starting. Link to the source: https://github.com/ramsudharsan/android_kernel_xiaomi_thomas P.S. I have used arm-eabi-4.7 cross compiler from Google to compile the kernel. |
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You are completely right @ramsudharsan |
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@jawircodes It should not be commented. Instead I have implemented in another way. See here: https://github.com/ramsudharsan/android_kernel_xiaomi_thomas/commit/ddc4d2c3dd5a551ef95b7dda3198dbcf4ae0301b#diff-8e3ed10d54de9baa5c023449807590c8R45 |
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@ramsudharsan i faced an brightness and wifi bug -_- |
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@ocoot The wifi bug is because of lack of prima drivers in kernel. I will work on adding it tonight. I think the Xiaomi uses the same kernel tag for its prima modem. Else we have to do some trial and error method. And for brightness I have to review the defconfig. I will do these tonight and push it. |
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@ramsudharsan thankyou, waiting for it :) 👍 |
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@jawircodes @ocoot I have tried to resolve all warnings and errors that showed up after merging prima drivers. Don't forget to copy the *.ko files after compiling. If you guys don't like it, I will put everything inbuilt. Check my repo for the updated kernel tree. Peace. ✌️ |
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@ramsudharsan did you get this? |
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@xnickbrandtx Nope I didn't get any such error. Is it from my kernel source that you are getting this error? |
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@ramsudharsan No... I regenerated the defconfig from msm8916-perf_defconfig |
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Do this make CONFIG_DEBUG_SECTION_MISMATCH=y as your compiler asks you and you will know what exactly is troubling inside. 🐹 |
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@ramsudharsan I'll just try your defconfig see if this error will occur again or not |
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@ramsudharsan any ideas? WARNING: drivers/built-in.o(.data+0xd0e4): Section mismatch in reference from the variable smd_xprt_cfg to the function .init.text:mpm_irq_domain_legacy_size() LD net/wireless/cfg80211.o WARNING: vmlinux.o(.data+0xeda4): Section mismatch in reference from the variable smd_xprt_cfg to the function .init.text:mpm_irq_domain_legacy_size() |
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@ramsudharsan finished compiling. waiting someone to test now |
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@ramsudharsan I just realized i made a huge mistake. I used the wrong compiler :p |
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👍 |
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@ramsudharsan do you want to join in github.com/thomas-dev ? I currently trying to bring over caf LA.BR.1.2.6_rb1.8 |
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@xnickbrandtx I have already joined the organization. I am bringing up kernel from LA.BR.1.2.7_rb1.5 |
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@ramsudharsan hmm 1.2.6 should be better since its used in cyanogenmod's msm8916 repo |
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@xnickbrandtx Though either family will probably work.The 1.2.7 family is a bit newer than 1.2.6 (though both are maintained). |
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@ramsudharsan do you have telegram? We can talk there instead |
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Nope. I don't use my mobile for disussions. Hangouts are preferred. Email: ramsudharsanm@gmail.com |
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@jawircodes Can you get me logs? |
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like this? @ramsudharsan this logs its not from me. bcz i'm not using miui and testing my self the kernel. http://pastebin.com/i8frcpvV |
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@ocoot Kernel specific logs are appreciated. Try pulling /proc/kmsg file. |
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@ramsudharsan Compiled the kernel and booted it but a black screen appeared after the boot and also am unable to take logs here is the error on adb logcat "Unable to open log device '/dev/log/main': No such file or directory" .. I checked if it is on or notby calling on the phone and the call rings but nothing is showing.. |
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@ramsudharsan after sometimes it got rebooted... any idea |
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I hanged the call still it was ringing |
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Attached kmsg |
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@jawircodes |
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@jawircodes need help do u use any messaging service ??? |
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Well the kernel itself is an older version compared to the one build by miui. |
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@jawircodes miui ofcourse |
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drivers/soc/qcom/subsystem_restart.c: In function 'subsys_register': anyway to solve it? |
[ Upstream commit ecf5fc6 ] Nikolay has reported a hang when a memcg reclaim got stuck with the following backtrace: PID: 18308 TASK: ffff883d7c9b0a30 CPU: 1 COMMAND: "rsync" #0 __schedule at ffffffff815ab152 #1 schedule at ffffffff815ab76e #2 schedule_timeout at ffffffff815ae5e5 MiCode#3 io_schedule_timeout at ffffffff815aad6a MiCode#4 bit_wait_io at ffffffff815abfc6 MiCode#5 __wait_on_bit at ffffffff815abda5 MiCode#6 wait_on_page_bit at ffffffff8111fd4f MiCode#7 shrink_page_list at ffffffff81135445 MiCode#8 shrink_inactive_list at ffffffff81135845 MiCode#9 shrink_lruvec at ffffffff81135ead MiCode#10 shrink_zone at ffffffff811360c3 MiCode#11 shrink_zones at ffffffff81136eff MiCode#12 do_try_to_free_pages at ffffffff8113712f MiCode#13 try_to_free_mem_cgroup_pages at ffffffff811372be MiCode#14 try_charge at ffffffff81189423 MiCode#15 mem_cgroup_try_charge at ffffffff8118c6f5 MiCode#16 __add_to_page_cache_locked at ffffffff8112137d MiCode#17 add_to_page_cache_lru at ffffffff81121618 MiCode#18 pagecache_get_page at ffffffff8112170b MiCode#19 grow_dev_page at ffffffff811c8297 MiCode#20 __getblk_slow at ffffffff811c91d6 MiCode#21 __getblk_gfp at ffffffff811c92c1 MiCode#22 ext4_ext_grow_indepth at ffffffff8124565c MiCode#23 ext4_ext_create_new_leaf at ffffffff81246ca8 MiCode#24 ext4_ext_insert_extent at ffffffff81246f09 MiCode#25 ext4_ext_map_blocks at ffffffff8124a848 MiCode#26 ext4_map_blocks at ffffffff8121a5b7 MiCode#27 mpage_map_one_extent at ffffffff8121b1fa MiCode#28 mpage_map_and_submit_extent at ffffffff8121f07b MiCode#29 ext4_writepages at ffffffff8121f6d5 MiCode#30 do_writepages at ffffffff8112c490 MiCode#31 __filemap_fdatawrite_range at ffffffff81120199 MiCode#32 filemap_flush at ffffffff8112041c MiCode#33 ext4_alloc_da_blocks at ffffffff81219da1 MiCode#34 ext4_rename at ffffffff81229b91 MiCode#35 ext4_rename2 at ffffffff81229e32 MiCode#36 vfs_rename at ffffffff811a08a5 MiCode#37 SYSC_renameat2 at ffffffff811a3ffc MiCode#38 sys_renameat2 at ffffffff811a408e MiCode#39 sys_rename at ffffffff8119e51e MiCode#40 system_call_fastpath at ffffffff815afa89 Dave Chinner has properly pointed out that this is a deadlock in the reclaim code because ext4 doesn't submit pages which are marked by PG_writeback right away. The heuristic was introduced by commit e62e384 ("memcg: prevent OOM with too many dirty pages") and it was applied only when may_enter_fs was specified. The code has been changed by c3b94f4 ("memcg: further prevent OOM with too many dirty pages") which has removed the __GFP_FS restriction with a reasoning that we do not get into the fs code. But this is not sufficient apparently because the fs doesn't necessarily submit pages marked PG_writeback for IO right away. ext4_bio_write_page calls io_submit_add_bh but that doesn't necessarily submit the bio. Instead it tries to map more pages into the bio and mpage_map_one_extent might trigger memcg charge which might end up waiting on a page which is marked PG_writeback but hasn't been submitted yet so we would end up waiting for something that never finishes. Fix this issue by replacing __GFP_IO by may_enter_fs check (for case 2) before we go to wait on the writeback. The page fault path, which is the only path that triggers memcg oom killer since 3.12, shouldn't require GFP_NOFS and so we shouldn't reintroduce the premature OOM killer issue which was originally addressed by the heuristic. As per David Chinner the xfs is doing similar thing since 2.6.15 already so ext4 is not the only affected filesystem. Moreover he notes: : For example: IO completion might require unwritten extent conversion : which executes filesystem transactions and GFP_NOFS allocations. The : writeback flag on the pages can not be cleared until unwritten : extent conversion completes. Hence memory reclaim cannot wait on : page writeback to complete in GFP_NOFS context because it is not : safe to do so, memcg reclaim or otherwise. Cc: stable@vger.kernel.org # 3.9+ [tytso@mit.edu: corrected the control flow] Fixes: c3b94f4 ("memcg: further prevent OOM with too many dirty pages") Reported-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
commit ecf5fc6 upstream. Nikolay has reported a hang when a memcg reclaim got stuck with the following backtrace: PID: 18308 TASK: ffff883d7c9b0a30 CPU: 1 COMMAND: "rsync" #0 __schedule at ffffffff815ab152 premaca#1 schedule at ffffffff815ab76e premaca#2 schedule_timeout at ffffffff815ae5e5 MiCode#3 io_schedule_timeout at ffffffff815aad6a MiCode#4 bit_wait_io at ffffffff815abfc6 MiCode#5 __wait_on_bit at ffffffff815abda5 MiCode#6 wait_on_page_bit at ffffffff8111fd4f MiCode#7 shrink_page_list at ffffffff81135445 MiCode#8 shrink_inactive_list at ffffffff81135845 MiCode#9 shrink_lruvec at ffffffff81135ead MiCode#10 shrink_zone at ffffffff811360c3 MiCode#11 shrink_zones at ffffffff81136eff MiCode#12 do_try_to_free_pages at ffffffff8113712f MiCode#13 try_to_free_mem_cgroup_pages at ffffffff811372be MiCode#14 try_charge at ffffffff81189423 MiCode#15 mem_cgroup_try_charge at ffffffff8118c6f5 MiCode#16 __add_to_page_cache_locked at ffffffff8112137d MiCode#17 add_to_page_cache_lru at ffffffff81121618 MiCode#18 pagecache_get_page at ffffffff8112170b MiCode#19 grow_dev_page at ffffffff811c8297 MiCode#20 __getblk_slow at ffffffff811c91d6 MiCode#21 __getblk_gfp at ffffffff811c92c1 MiCode#22 ext4_ext_grow_indepth at ffffffff8124565c MiCode#23 ext4_ext_create_new_leaf at ffffffff81246ca8 MiCode#24 ext4_ext_insert_extent at ffffffff81246f09 MiCode#25 ext4_ext_map_blocks at ffffffff8124a848 MiCode#26 ext4_map_blocks at ffffffff8121a5b7 MiCode#27 mpage_map_one_extent at ffffffff8121b1fa MiCode#28 mpage_map_and_submit_extent at ffffffff8121f07b MiCode#29 ext4_writepages at ffffffff8121f6d5 MiCode#30 do_writepages at ffffffff8112c490 MiCode#31 __filemap_fdatawrite_range at ffffffff81120199 MiCode#32 filemap_flush at ffffffff8112041c MiCode#33 ext4_alloc_da_blocks at ffffffff81219da1 MiCode#34 ext4_rename at ffffffff81229b91 MiCode#35 ext4_rename2 at ffffffff81229e32 MiCode#36 vfs_rename at ffffffff811a08a5 MiCode#37 SYSC_renameat2 at ffffffff811a3ffc MiCode#38 sys_renameat2 at ffffffff811a408e MiCode#39 sys_rename at ffffffff8119e51e MiCode#40 system_call_fastpath at ffffffff815afa89 Dave Chinner has properly pointed out that this is a deadlock in the reclaim code because ext4 doesn't submit pages which are marked by PG_writeback right away. The heuristic was introduced by commit e62e384 ("memcg: prevent OOM with too many dirty pages") and it was applied only when may_enter_fs was specified. The code has been changed by c3b94f4 ("memcg: further prevent OOM with too many dirty pages") which has removed the __GFP_FS restriction with a reasoning that we do not get into the fs code. But this is not sufficient apparently because the fs doesn't necessarily submit pages marked PG_writeback for IO right away. ext4_bio_write_page calls io_submit_add_bh but that doesn't necessarily submit the bio. Instead it tries to map more pages into the bio and mpage_map_one_extent might trigger memcg charge which might end up waiting on a page which is marked PG_writeback but hasn't been submitted yet so we would end up waiting for something that never finishes. Fix this issue by replacing __GFP_IO by may_enter_fs check (for case 2) before we go to wait on the writeback. The page fault path, which is the only path that triggers memcg oom killer since 3.12, shouldn't require GFP_NOFS and so we shouldn't reintroduce the premature OOM killer issue which was originally addressed by the heuristic. As per David Chinner the xfs is doing similar thing since 2.6.15 already so ext4 is not the only affected filesystem. Moreover he notes: : For example: IO completion might require unwritten extent conversion : which executes filesystem transactions and GFP_NOFS allocations. The : writeback flag on the pages can not be cleared until unwritten : extent conversion completes. Hence memory reclaim cannot wait on : page writeback to complete in GFP_NOFS context because it is not : safe to do so, memcg reclaim or otherwise. [tytso@mit.edu: corrected the control flow] Fixes: c3b94f4 ("memcg: further prevent OOM with too many dirty pages") Reported-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [@MSF-Jarvis: Fix conflicts from "mm: vmscan: stall page reclaim after a list of pages have been processed" ] Change-Id: I09aa7c565388b4b323034d5c71a463f4fb175462
[ Upstream commit 2c5d5b1 ] syzbot loves to set very small mtu on devices, since it brings joy. We must make llc_ui_sendmsg() fool proof. usercopy: Kernel memory overwrite attempt detected to wrapped address (offset 0, size 18446612139802320068)! kernel BUG at mm/usercopy.c:100! invalid opcode: 0000 [MiCode#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 17464 Comm: syz-executor1 Not tainted 4.17.0-rc3+ MiCode#36 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:usercopy_abort+0xbb/0xbd mm/usercopy.c:88 RSP: 0018:ffff8801868bf800 EFLAGS: 00010282 RAX: 000000000000006c RBX: ffffffff87d2fb00 RCX: 0000000000000000 RDX: 000000000000006c RSI: ffffffff81610731 RDI: ffffed0030d17ef6 RBP: ffff8801868bf858 R08: ffff88018daa4200 R09: ffffed003b5c4fb0 R10: ffffed003b5c4fb0 R11: ffff8801dae27d87 R12: ffffffff87d2f8e0 R13: ffffffff87d2f7a0 R14: ffffffff87d2f7a0 R15: ffffffff87d2f7a0 FS: 00007f56a14ac700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bc21000 CR3: 00000001abeb1000 CR4: 00000000001426f0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000030602 Call Trace: check_bogus_address mm/usercopy.c:153 [inline] __check_object_size+0x5d9/0x5d9 mm/usercopy.c:256 check_object_size include/linux/thread_info.h:108 [inline] check_copy_size include/linux/thread_info.h:139 [inline] copy_from_iter_full include/linux/uio.h:121 [inline] memcpy_from_msg include/linux/skbuff.h:3305 [inline] llc_ui_sendmsg+0x4b1/0x1530 net/llc/af_llc.c:941 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 __sys_sendto+0x3d7/0x670 net/socket.c:1789 __do_sys_sendto net/socket.c:1801 [inline] __se_sys_sendto net/socket.c:1797 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1797 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455979 RSP: 002b:00007f56a14abc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f56a14ac6d4 RCX: 0000000000455979 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000018 RBP: 000000000072bea0 R08: 00000000200012c0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000548 R14: 00000000006fbf60 R15: 0000000000000000 Code: 55 c0 e8 c0 55 bb ff ff 75 c8 48 8b 55 c0 4d 89 f9 ff 75 d0 4d 89 e8 48 89 d9 4c 89 e6 41 56 48 c7 c7 80 fa d2 87 e8 a0 0b a3 ff <0f> 0b e8 95 55 bb ff e8 c0 a8 f7 ff 8b 95 14 ff ff ff 4d 89 e8 RIP: usercopy_abort+0xbb/0xbd mm/usercopy.c:88 RSP: ffff8801868bf800 Fixes: 1da177e ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 2c5d5b1 ] syzbot loves to set very small mtu on devices, since it brings joy. We must make llc_ui_sendmsg() fool proof. usercopy: Kernel memory overwrite attempt detected to wrapped address (offset 0, size 18446612139802320068)! kernel BUG at mm/usercopy.c:100! invalid opcode: 0000 [MiCode#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 17464 Comm: syz-executor1 Not tainted 4.17.0-rc3+ MiCode#36 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:usercopy_abort+0xbb/0xbd mm/usercopy.c:88 RSP: 0018:ffff8801868bf800 EFLAGS: 00010282 RAX: 000000000000006c RBX: ffffffff87d2fb00 RCX: 0000000000000000 RDX: 000000000000006c RSI: ffffffff81610731 RDI: ffffed0030d17ef6 RBP: ffff8801868bf858 R08: ffff88018daa4200 R09: ffffed003b5c4fb0 R10: ffffed003b5c4fb0 R11: ffff8801dae27d87 R12: ffffffff87d2f8e0 R13: ffffffff87d2f7a0 R14: ffffffff87d2f7a0 R15: ffffffff87d2f7a0 FS: 00007f56a14ac700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bc21000 CR3: 00000001abeb1000 CR4: 00000000001426f0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000030602 Call Trace: check_bogus_address mm/usercopy.c:153 [inline] __check_object_size+0x5d9/0x5d9 mm/usercopy.c:256 check_object_size include/linux/thread_info.h:108 [inline] check_copy_size include/linux/thread_info.h:139 [inline] copy_from_iter_full include/linux/uio.h:121 [inline] memcpy_from_msg include/linux/skbuff.h:3305 [inline] llc_ui_sendmsg+0x4b1/0x1530 net/llc/af_llc.c:941 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 __sys_sendto+0x3d7/0x670 net/socket.c:1789 __do_sys_sendto net/socket.c:1801 [inline] __se_sys_sendto net/socket.c:1797 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1797 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455979 RSP: 002b:00007f56a14abc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f56a14ac6d4 RCX: 0000000000455979 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000018 RBP: 000000000072bea0 R08: 00000000200012c0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000548 R14: 00000000006fbf60 R15: 0000000000000000 Code: 55 c0 e8 c0 55 bb ff ff 75 c8 48 8b 55 c0 4d 89 f9 ff 75 d0 4d 89 e8 48 89 d9 4c 89 e6 41 56 48 c7 c7 80 fa d2 87 e8 a0 0b a3 ff <0f> 0b e8 95 55 bb ff e8 c0 a8 f7 ff 8b 95 14 ff ff ff 4d 89 e8 RIP: usercopy_abort+0xbb/0xbd mm/usercopy.c:88 RSP: ffff8801868bf800 Fixes: 1da177e ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 2c5d5b1 ] syzbot loves to set very small mtu on devices, since it brings joy. We must make llc_ui_sendmsg() fool proof. usercopy: Kernel memory overwrite attempt detected to wrapped address (offset 0, size 18446612139802320068)! kernel BUG at mm/usercopy.c:100! invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 17464 Comm: syz-executor1 Not tainted 4.17.0-rc3+ MiCode#36 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:usercopy_abort+0xbb/0xbd mm/usercopy.c:88 RSP: 0018:ffff8801868bf800 EFLAGS: 00010282 RAX: 000000000000006c RBX: ffffffff87d2fb00 RCX: 0000000000000000 RDX: 000000000000006c RSI: ffffffff81610731 RDI: ffffed0030d17ef6 RBP: ffff8801868bf858 R08: ffff88018daa4200 R09: ffffed003b5c4fb0 R10: ffffed003b5c4fb0 R11: ffff8801dae27d87 R12: ffffffff87d2f8e0 R13: ffffffff87d2f7a0 R14: ffffffff87d2f7a0 R15: ffffffff87d2f7a0 FS: 00007f56a14ac700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bc21000 CR3: 00000001abeb1000 CR4: 00000000001426f0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000030602 Call Trace: check_bogus_address mm/usercopy.c:153 [inline] __check_object_size+0x5d9/0x5d9 mm/usercopy.c:256 check_object_size include/linux/thread_info.h:108 [inline] check_copy_size include/linux/thread_info.h:139 [inline] copy_from_iter_full include/linux/uio.h:121 [inline] memcpy_from_msg include/linux/skbuff.h:3305 [inline] llc_ui_sendmsg+0x4b1/0x1530 net/llc/af_llc.c:941 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 __sys_sendto+0x3d7/0x670 net/socket.c:1789 __do_sys_sendto net/socket.c:1801 [inline] __se_sys_sendto net/socket.c:1797 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1797 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455979 RSP: 002b:00007f56a14abc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f56a14ac6d4 RCX: 0000000000455979 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000018 RBP: 000000000072bea0 R08: 00000000200012c0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000548 R14: 00000000006fbf60 R15: 0000000000000000 Code: 55 c0 e8 c0 55 bb ff ff 75 c8 48 8b 55 c0 4d 89 f9 ff 75 d0 4d 89 e8 48 89 d9 4c 89 e6 41 56 48 c7 c7 80 fa d2 87 e8 a0 0b a3 ff <0f> 0b e8 95 55 bb ff e8 c0 a8 f7 ff 8b 95 14 ff ff ff 4d 89 e8 RIP: usercopy_abort+0xbb/0xbd mm/usercopy.c:88 RSP: ffff8801868bf800 Fixes: 1da177e ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We need to ensure that tracepoints are registered and unregistered with the users of them. The existing atomic count isn't enough for that. Add a lock around the tracepoints, so we serialize access to them. This fixes cases where we have multiple users setting up and tearing down tracepoints, like this: CPU: 0 PID: 2995 Comm: syzkaller857118 Not tainted 4.14.0-rc5-next-20171018+ #36 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1c4/0x1e0 kernel/panic.c:546 report_bug+0x211/0x2d0 lib/bug.c:183 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:177 do_trap_no_signal arch/x86/kernel/traps.c:211 [inline] do_trap+0x260/0x390 arch/x86/kernel/traps.c:260 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:297 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:310 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905 RIP: 0010:tracepoint_add_func kernel/tracepoint.c:210 [inline] RIP: 0010:tracepoint_probe_register_prio+0x397/0x9a0 kernel/tracepoint.c:283 RSP: 0018:ffff8801d1d1f6c0 EFLAGS: 00010293 RAX: ffff8801d22e8540 RBX: 00000000ffffffef RCX: ffffffff81710f07 RDX: 0000000000000000 RSI: ffffffff85b679c0 RDI: ffff8801d5f19818 RBP: ffff8801d1d1f7c8 R08: ffffffff81710c10 R09: 0000000000000004 R10: ffff8801d1d1f6b0 R11: 0000000000000003 R12: ffffffff817597f0 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff8801d1d1f7a0 tracepoint_probe_register+0x2a/0x40 kernel/tracepoint.c:304 register_trace_block_rq_insert include/trace/events/block.h:191 [inline] blk_register_tracepoints+0x1e/0x2f0 kernel/trace/blktrace.c:1043 do_blk_trace_setup+0xa10/0xcf0 kernel/trace/blktrace.c:542 blk_trace_setup+0xbd/0x180 kernel/trace/blktrace.c:564 sg_ioctl+0xc71/0x2d90 drivers/scsi/sg.c:1089 vfs_ioctl fs/ioctl.c:45 [inline] do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:685 SYSC_ioctl fs/ioctl.c:700 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x444339 RSP: 002b:00007ffe05bb5b18 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000006d66c0 RCX: 0000000000444339 RDX: 000000002084cf90 RSI: 00000000c0481273 RDI: 0000000000000009 RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: ffffffffffffffff R13: 00000000c0481273 R14: 0000000000000000 R15: 0000000000000000 since we can now run these in parallel. Ensure that the exported helpers for doing this are grabbing the queue trace mutex. Reported-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
and others
hi guys, i faced new error here for thomas. maybe anyone can help me?
DTC arch/arm/boot/dts/qcom/../msm8226-sim.dtb
Error: arch/arm/boot/dts/qcom/msm8226-regulator.dtsi:532.2-3 label or path, 'pm8226_chg_chgr', not found
FATAL ERROR: Syntax error parsing input tree
/android/miui/arch/arm/boot/dts/qcom/Makefile:173: recipe for target 'arch/arm/boot/dts/qcom/../msm8226-sim.dtb' failed
make[1]: *** [arch/arm/boot/dts/qcom/../msm8226-sim.dtb] Error 1
/android/miui/arch/arm/Makefile:307: recipe for target 'dtbs' failed
make: *** [dtbs] Error 2
make: *** Waiting for unfinished jobs....
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