Re: Warning triggered in drm_dp_delayed_destroy_work workqueue
On Fri, Jun 26, 2020 at 05:06:00PM +0300, Ville Syrjälä wrote:
> On Fri, Jun 26, 2020 at 03:40:20PM +0200, Daniel Vetter wrote:
> > Adding Lyude, she's been revamping all the lifetime refcouting in the
> > dp code last few kernel releases. At a glance I don't even have an
> > idea what's going wrong here ...
>
> Already fixed by Imre I believe.
>
> 7d11507605a7 ("drm/dp_mst: Fix the DDC I2C device unregistration of an MST
> port")
>
Ah! It does seems to be the same issue indeed! Thanks a lot for pointing
me at this commit. Hopefully this fix can be included in 5.8. Not that
I'm seeing this WARNING frequently, but frequent enough to annoy me :-)
Cheers,
--
Luis
> > -Daniel
> >
> > On Thu, Jun 25, 2020 at 12:22 PM Luis Henriques wrote:
> > >
> > > Hi!
> > >
> > > I've been seeing this warning occasionally, not sure if it has been
> > > reported yet. It's not a regression as I remember seeing it in, at least,
> > > 5.7.
> > >
> > > Anyway, here it is:
> > >
> > > [ cut here ]
> > > sysfs group 'power' not found for kobject 'i2c-7'
> > > WARNING: CPU: 1 PID: 17996 at fs/sysfs/group.c:279
> > > sysfs_remove_group+0x74/0x80
> > > Modules linked in: ccm(E) dell_rbtn(E) iwlmvm(E) mei_wdt(E) mac80211(E)
> > > libarc4(E) uvcvideo(E) dell_laptop(E) videobuf2_vmalloc(E) intel_rapl_>
> > > soundcore(E) intel_soc_dts_iosf(E) rng_core(E) battery(E) acpi_pad(E)
> > > sparse_keymap(E) acpi_thermal_rel(E) intel_pch_thermal(E) int3402_therm>
> > > sysfillrect(E) intel_lpss(E) sysimgblt(E) fb_sys_fops(E) idma64(E)
> > > scsi_mod(E) virt_dma(E) mfd_core(E) drm(E) fan(E) thermal(E) i2c_hid(E)
> > > hi>
> > > CPU: 1 PID: 17996 Comm: kworker/1:1 Tainted: GE
> > > 5.8.0-rc2+ #36
> > > Hardware name: Dell Inc. Precision 5510/0N8J4R, BIOS 1.14.2 05/25/2020
> > > Workqueue: events drm_dp_delayed_destroy_work [drm_kms_helper]
> > > RIP: 0010:sysfs_remove_group+0x74/0x80
> > > Code: ff 5b 48 89 ef 5d 41 5c e9 79 bc ff ff 48 89 ef e8 01 b8 ff ff eb
> > > cc 49 8b 14 24 48 8b 33 48 c7 c7 90 ac 8b 93 e8 de b1 d4 ff <0f> 0b 5b>
> > > RSP: :b12d40c13c38 EFLAGS: 00010282
> > > RAX: RBX: 936e6a60 RCX: 0027
> > > RDX: 0027 RSI: 0086 RDI: 8e37de097b68
> > > RBP: R08: 8e37de097b60 R09: 93fb4624
> > > R10: 0904 R11: 0001002c R12: 8e37d3081c18
> > > R13: 8e375f1450a8 R14: R15: 8e375f145410
> > > FS: () GS:8e37de08()
> > > knlGS:
> > > CS: 0010 DS: ES: CR0: 80050033
> > > CR2: CR3: 0004ab20a001 CR4: 003606e0
> > > DR0: DR1: DR2:
> > > DR3: DR6: fffe0ff0 DR7: 0400
> > > Call Trace:
> > > device_del+0x97/0x3f0
> > > cdev_device_del+0x15/0x30
> > > put_i2c_dev+0x7b/0x90 [i2c_dev]
> > > i2cdev_detach_adapter+0x33/0x60 [i2c_dev]
> > > notifier_call_chain+0x47/0x70
> > > blocking_notifier_call_chain+0x3d/0x60
> > > device_del+0x8f/0x3f0
> > > device_unregister+0x16/0x60
> > > i2c_del_adapter+0x247/0x300
> > > drm_dp_port_set_pdt+0x90/0x2c0 [drm_kms_helper]
> > > drm_dp_delayed_destroy_work+0x2be/0x340 [drm_kms_helper]
> > > process_one_work+0x1ae/0x370
> > > worker_thread+0x50/0x3a0
> > > ? process_one_work+0x370/0x370
> > > kthread+0x11b/0x140
> > > ? kthread_associate_blkcg+0x90/0x90
> > > ret_from_fork+0x22/0x30
> > > ---[ end trace 16486ad3c2627482 ]---
> > > [ cut here ]
> > >
> > > Cheers,
> > > --
> > > Luis
> >
> >
> >
> > --
> > Daniel Vetter
> > Software Engineer, Intel Corporation
> > http://blog.ffwll.ch
> > ___
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
> --
> Ville Syrjälä
> Intel
___
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Re: Warning triggered in drm_dp_delayed_destroy_work workqueue
On Fri, Jun 26, 2020 at 03:40:20PM +0200, Daniel Vetter wrote:
> Adding Lyude, she's been revamping all the lifetime refcouting in the
> dp code last few kernel releases. At a glance I don't even have an
> idea what's going wrong here ...
Already fixed by Imre I believe.
7d11507605a7 ("drm/dp_mst: Fix the DDC I2C device unregistration of an MST
port")
> -Daniel
>
> On Thu, Jun 25, 2020 at 12:22 PM Luis Henriques wrote:
> >
> > Hi!
> >
> > I've been seeing this warning occasionally, not sure if it has been
> > reported yet. It's not a regression as I remember seeing it in, at least,
> > 5.7.
> >
> > Anyway, here it is:
> >
> > [ cut here ]
> > sysfs group 'power' not found for kobject 'i2c-7'
> > WARNING: CPU: 1 PID: 17996 at fs/sysfs/group.c:279
> > sysfs_remove_group+0x74/0x80
> > Modules linked in: ccm(E) dell_rbtn(E) iwlmvm(E) mei_wdt(E) mac80211(E)
> > libarc4(E) uvcvideo(E) dell_laptop(E) videobuf2_vmalloc(E) intel_rapl_>
> > soundcore(E) intel_soc_dts_iosf(E) rng_core(E) battery(E) acpi_pad(E)
> > sparse_keymap(E) acpi_thermal_rel(E) intel_pch_thermal(E) int3402_therm>
> > sysfillrect(E) intel_lpss(E) sysimgblt(E) fb_sys_fops(E) idma64(E)
> > scsi_mod(E) virt_dma(E) mfd_core(E) drm(E) fan(E) thermal(E) i2c_hid(E) hi>
> > CPU: 1 PID: 17996 Comm: kworker/1:1 Tainted: GE 5.8.0-rc2+
> > #36
> > Hardware name: Dell Inc. Precision 5510/0N8J4R, BIOS 1.14.2 05/25/2020
> > Workqueue: events drm_dp_delayed_destroy_work [drm_kms_helper]
> > RIP: 0010:sysfs_remove_group+0x74/0x80
> > Code: ff 5b 48 89 ef 5d 41 5c e9 79 bc ff ff 48 89 ef e8 01 b8 ff ff eb cc
> > 49 8b 14 24 48 8b 33 48 c7 c7 90 ac 8b 93 e8 de b1 d4 ff <0f> 0b 5b>
> > RSP: :b12d40c13c38 EFLAGS: 00010282
> > RAX: RBX: 936e6a60 RCX: 0027
> > RDX: 0027 RSI: 0086 RDI: 8e37de097b68
> > RBP: R08: 8e37de097b60 R09: 93fb4624
> > R10: 0904 R11: 0001002c R12: 8e37d3081c18
> > R13: 8e375f1450a8 R14: R15: 8e375f145410
> > FS: () GS:8e37de08() knlGS:
> > CS: 0010 DS: ES: CR0: 80050033
> > CR2: CR3: 0004ab20a001 CR4: 003606e0
> > DR0: DR1: DR2:
> > DR3: DR6: fffe0ff0 DR7: 0400
> > Call Trace:
> > device_del+0x97/0x3f0
> > cdev_device_del+0x15/0x30
> > put_i2c_dev+0x7b/0x90 [i2c_dev]
> > i2cdev_detach_adapter+0x33/0x60 [i2c_dev]
> > notifier_call_chain+0x47/0x70
> > blocking_notifier_call_chain+0x3d/0x60
> > device_del+0x8f/0x3f0
> > device_unregister+0x16/0x60
> > i2c_del_adapter+0x247/0x300
> > drm_dp_port_set_pdt+0x90/0x2c0 [drm_kms_helper]
> > drm_dp_delayed_destroy_work+0x2be/0x340 [drm_kms_helper]
> > process_one_work+0x1ae/0x370
> > worker_thread+0x50/0x3a0
> > ? process_one_work+0x370/0x370
> > kthread+0x11b/0x140
> > ? kthread_associate_blkcg+0x90/0x90
> > ret_from_fork+0x22/0x30
> > ---[ end trace 16486ad3c2627482 ]---
> > [ cut here ]
> >
> > Cheers,
> > --
> > Luis
>
>
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
> ___
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Ville Syrjälä
Intel
___
dri-devel mailing list
dri-devel@lists.freedesktop.org
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Re: Warning triggered in drm_dp_delayed_destroy_work workqueue
Adding Lyude, she's been revamping all the lifetime refcouting in the dp code last few kernel releases. At a glance I don't even have an idea what's going wrong here ... -Daniel On Thu, Jun 25, 2020 at 12:22 PM Luis Henriques wrote: > > Hi! > > I've been seeing this warning occasionally, not sure if it has been > reported yet. It's not a regression as I remember seeing it in, at least, > 5.7. > > Anyway, here it is: > > [ cut here ] > sysfs group 'power' not found for kobject 'i2c-7' > WARNING: CPU: 1 PID: 17996 at fs/sysfs/group.c:279 > sysfs_remove_group+0x74/0x80 > Modules linked in: ccm(E) dell_rbtn(E) iwlmvm(E) mei_wdt(E) mac80211(E) > libarc4(E) uvcvideo(E) dell_laptop(E) videobuf2_vmalloc(E) intel_rapl_> > soundcore(E) intel_soc_dts_iosf(E) rng_core(E) battery(E) acpi_pad(E) > sparse_keymap(E) acpi_thermal_rel(E) intel_pch_thermal(E) int3402_therm> > sysfillrect(E) intel_lpss(E) sysimgblt(E) fb_sys_fops(E) idma64(E) > scsi_mod(E) virt_dma(E) mfd_core(E) drm(E) fan(E) thermal(E) i2c_hid(E) hi> > CPU: 1 PID: 17996 Comm: kworker/1:1 Tainted: GE 5.8.0-rc2+ #36 > Hardware name: Dell Inc. Precision 5510/0N8J4R, BIOS 1.14.2 05/25/2020 > Workqueue: events drm_dp_delayed_destroy_work [drm_kms_helper] > RIP: 0010:sysfs_remove_group+0x74/0x80 > Code: ff 5b 48 89 ef 5d 41 5c e9 79 bc ff ff 48 89 ef e8 01 b8 ff ff eb cc 49 > 8b 14 24 48 8b 33 48 c7 c7 90 ac 8b 93 e8 de b1 d4 ff <0f> 0b 5b> > RSP: :b12d40c13c38 EFLAGS: 00010282 > RAX: RBX: 936e6a60 RCX: 0027 > RDX: 0027 RSI: 0086 RDI: 8e37de097b68 > RBP: R08: 8e37de097b60 R09: 93fb4624 > R10: 0904 R11: 0001002c R12: 8e37d3081c18 > R13: 8e375f1450a8 R14: R15: 8e375f145410 > FS: () GS:8e37de08() knlGS: > CS: 0010 DS: ES: CR0: 80050033 > CR2: CR3: 0004ab20a001 CR4: 003606e0 > DR0: DR1: DR2: > DR3: DR6: fffe0ff0 DR7: 0400 > Call Trace: > device_del+0x97/0x3f0 > cdev_device_del+0x15/0x30 > put_i2c_dev+0x7b/0x90 [i2c_dev] > i2cdev_detach_adapter+0x33/0x60 [i2c_dev] > notifier_call_chain+0x47/0x70 > blocking_notifier_call_chain+0x3d/0x60 > device_del+0x8f/0x3f0 > device_unregister+0x16/0x60 > i2c_del_adapter+0x247/0x300 > drm_dp_port_set_pdt+0x90/0x2c0 [drm_kms_helper] > drm_dp_delayed_destroy_work+0x2be/0x340 [drm_kms_helper] > process_one_work+0x1ae/0x370 > worker_thread+0x50/0x3a0 > ? process_one_work+0x370/0x370 > kthread+0x11b/0x140 > ? kthread_associate_blkcg+0x90/0x90 > ret_from_fork+0x22/0x30 > ---[ end trace 16486ad3c2627482 ]--- > [ cut here ] > > Cheers, > -- > Luis -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch ___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
Warning triggered in drm_dp_delayed_destroy_work workqueue
Hi! I've been seeing this warning occasionally, not sure if it has been reported yet. It's not a regression as I remember seeing it in, at least, 5.7. Anyway, here it is: [ cut here ] sysfs group 'power' not found for kobject 'i2c-7' WARNING: CPU: 1 PID: 17996 at fs/sysfs/group.c:279 sysfs_remove_group+0x74/0x80 Modules linked in: ccm(E) dell_rbtn(E) iwlmvm(E) mei_wdt(E) mac80211(E) libarc4(E) uvcvideo(E) dell_laptop(E) videobuf2_vmalloc(E) intel_rapl_> soundcore(E) intel_soc_dts_iosf(E) rng_core(E) battery(E) acpi_pad(E) sparse_keymap(E) acpi_thermal_rel(E) intel_pch_thermal(E) int3402_therm> sysfillrect(E) intel_lpss(E) sysimgblt(E) fb_sys_fops(E) idma64(E) scsi_mod(E) virt_dma(E) mfd_core(E) drm(E) fan(E) thermal(E) i2c_hid(E) hi> CPU: 1 PID: 17996 Comm: kworker/1:1 Tainted: GE 5.8.0-rc2+ #36 Hardware name: Dell Inc. Precision 5510/0N8J4R, BIOS 1.14.2 05/25/2020 Workqueue: events drm_dp_delayed_destroy_work [drm_kms_helper] RIP: 0010:sysfs_remove_group+0x74/0x80 Code: ff 5b 48 89 ef 5d 41 5c e9 79 bc ff ff 48 89 ef e8 01 b8 ff ff eb cc 49 8b 14 24 48 8b 33 48 c7 c7 90 ac 8b 93 e8 de b1 d4 ff <0f> 0b 5b> RSP: :b12d40c13c38 EFLAGS: 00010282 RAX: RBX: 936e6a60 RCX: 0027 RDX: 0027 RSI: 0086 RDI: 8e37de097b68 RBP: R08: 8e37de097b60 R09: 93fb4624 R10: 0904 R11: 0001002c R12: 8e37d3081c18 R13: 8e375f1450a8 R14: R15: 8e375f145410 FS: () GS:8e37de08() knlGS: CS: 0010 DS: ES: CR0: 80050033 CR2: CR3: 0004ab20a001 CR4: 003606e0 DR0: DR1: DR2: DR3: DR6: fffe0ff0 DR7: 0400 Call Trace: device_del+0x97/0x3f0 cdev_device_del+0x15/0x30 put_i2c_dev+0x7b/0x90 [i2c_dev] i2cdev_detach_adapter+0x33/0x60 [i2c_dev] notifier_call_chain+0x47/0x70 blocking_notifier_call_chain+0x3d/0x60 device_del+0x8f/0x3f0 device_unregister+0x16/0x60 i2c_del_adapter+0x247/0x300 drm_dp_port_set_pdt+0x90/0x2c0 [drm_kms_helper] drm_dp_delayed_destroy_work+0x2be/0x340 [drm_kms_helper] process_one_work+0x1ae/0x370 worker_thread+0x50/0x3a0 ? process_one_work+0x370/0x370 kthread+0x11b/0x140 ? kthread_associate_blkcg+0x90/0x90 ret_from_fork+0x22/0x30 ---[ end trace 16486ad3c2627482 ]--- [ cut here ] Cheers, -- Luis ___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
