a ton of lockdep warnings on 0.8.0 with debug-enabled rhel8 kernel #8868
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behlendorf
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Also confirmed this with All kernel modules needed to be GPL'd (locally) to reproduce this. |
kusumi
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Jun 11, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed openzfs#8868 on Fedora 29 running kernel-debug. torvalds/linux@918b8ac55b is an example of commit which fixed this. See include/linux/sysfs.h for what it actually does. Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
kusumi
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Jun 11, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed openzfs#8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
behlendorf
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Jun 13, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed #8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com> Closes #8868 Closes #8884
tonyhutter
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Aug 13, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed openzfs#8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com> Closes openzfs#8868 Closes openzfs#8884
tonyhutter
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Aug 22, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed openzfs#8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com> Closes openzfs#8868 Closes openzfs#8884
tonyhutter
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Aug 23, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed openzfs#8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com> Closes openzfs#8868 Closes openzfs#8884
tonyhutter
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Sep 17, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed openzfs#8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com> Closes openzfs#8868 Closes openzfs#8884
tonyhutter
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Sep 18, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed openzfs#8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com> Closes openzfs#8868 Closes openzfs#8884
tonyhutter
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Sep 26, 2019
sysfs_attr_init() is required to make lockdep happy for dynamically allocated sysfs attributes. This fixed #8868 on Fedora 29 running kernel-debug. This requirement was introduced in 2.6.34. See include/linux/sysfs.h for what it actually does. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com> Closes #8868 Closes #8884
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I am trying to create a new rhel8 testrig that includes ZFS on it. The focus of it is correctness testing so I am building zfs 0.8.0 from the repo manually against RHEL8 kernel with all sorts of extra debug enabled and also zfs itself is built with --enable-debug.
Inserting such a module produces a lot of "key XXX not in .data" type of messages
At least some of them are related to sysfs entries registration so I enabled kobject debugging that adds some more spam in the messages, but hopefully helps to better see where these objects are coming from at least:
I also disabled zfs debug configure option and it did not seem to make any changes in that output.
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