Bug 572220
| Summary: | INFO: possible circular locking dependency detected - nouveau_gem_ioctl_pushbuf | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Stefan Ring <stefanrin> | ||||
| Component: | kernel | Assignee: | Ben Skeggs <bskeggs> | ||||
| Status: | CLOSED NEXTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | low | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 13 | CC: | anton, awilliam, carenas, dougsland, gansalmon, itamar, johannbg, jonathan, kernel-maint, rik.theys | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2011-06-05 22:12:10 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Comment on attachment 399110 [details]
log excerpt
Let's put it here, so google can find it:
Mar 10 12:11:55 localhost kernel: =======================================================
Mar 10 12:11:55 localhost kernel: [ INFO: possible circular locking dependency detected ]
Mar 10 12:11:55 localhost kernel: 2.6.33-1.fc13.x86_64 #1
Mar 10 12:11:55 localhost kernel: -------------------------------------------------------
Mar 10 12:11:55 localhost kernel: Xorg/1601 is trying to acquire lock:
Mar 10 12:11:55 localhost kernel: (&mm->mmap_sem){++++++}, at: [<ffffffff810f1a00>] might_fault+0x5c/0xac
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: but task is already holding lock:
Mar 10 12:11:55 localhost kernel: (&dev->struct_mutex){+.+.+.}, at: [<ffffffffa007efb9>] nouveau_gem_ioctl_pushbuf+0x1e8/0x
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: which lock already depends on the new lock.
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: the existing dependency chain (in reverse order) is:
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: -> #1 (&dev->struct_mutex){+.+.+.}:
Mar 10 12:11:55 localhost kernel: [<ffffffff8107e817>] __lock_acquire+0xb7d/0xd2c
Mar 10 12:11:55 localhost kernel: [<ffffffff8107eaa2>] lock_acquire+0xdc/0x102
Mar 10 12:11:55 localhost kernel: [<ffffffff81477025>] __mutex_lock_common+0x4b/0x392
Mar 10 12:11:55 localhost kernel: [<ffffffff81477430>] mutex_lock_nested+0x3e/0x43
Mar 10 12:11:55 localhost kernel: [<ffffffffa001ede9>] drm_mmap+0x38/0x5f [drm]
Mar 10 12:11:55 localhost kernel: [<ffffffffa007fc3a>] nouveau_ttm_mmap+0x34/0x46 [nouveau]
Mar 10 12:11:55 localhost kernel: [<ffffffff810fa0a5>] mmap_region+0x2ac/0x4cb
Mar 10 12:11:55 localhost kernel: [<ffffffff810fa55c>] do_mmap_pgoff+0x298/0x2fb
Mar 10 12:11:55 localhost kernel: [<ffffffff810fa6b5>] sys_mmap_pgoff+0xf6/0x12e
Mar 10 12:11:55 localhost kernel: [<ffffffff8100dd89>] sys_mmap+0x22/0x24
Mar 10 12:11:55 localhost kernel: [<ffffffff81009c72>] system_call_fastpath+0x16/0x1b
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: -> #0 (&mm->mmap_sem){++++++}:
Mar 10 12:11:55 localhost kernel: [<ffffffff8107e6c1>] __lock_acquire+0xa27/0xd2c
Mar 10 12:11:55 localhost kernel: [<ffffffff8107eaa2>] lock_acquire+0xdc/0x102
Mar 10 12:11:55 localhost kernel: [<ffffffff810f1a2d>] might_fault+0x89/0xac
Mar 10 12:11:55 localhost kernel: [<ffffffffa007e849>] validate_list+0x22b/0x288 [nouveau]
Mar 10 12:11:55 localhost kernel: [<ffffffffa007fa7a>] nouveau_gem_ioctl_pushbuf+0xca9/0xcdf [nouveau]
Mar 10 12:11:55 localhost kernel: [<ffffffffa0019418>] drm_ioctl+0x28f/0x373 [drm]
Mar 10 12:11:55 localhost kernel: [<ffffffff8112bcfc>] vfs_ioctl+0x32/0xa6
Mar 10 12:11:55 localhost kernel: [<ffffffff8112c27c>] do_vfs_ioctl+0x490/0x4d6
Mar 10 12:11:55 localhost kernel: [<ffffffff8112c318>] sys_ioctl+0x56/0x79
Mar 10 12:11:55 localhost kernel: [<ffffffff81009c72>] system_call_fastpath+0x16/0x1b
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: other info that might help us debug this:
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: 1 lock held by Xorg/1601:
Mar 10 12:11:55 localhost kernel: #0: (&dev->struct_mutex){+.+.+.}, at: [<ffffffffa007efb9>] nouveau_gem_ioctl_pushbuf+0x1
Mar 10 12:11:55 localhost kernel:
Mar 10 12:11:55 localhost kernel: stack backtrace:
Mar 10 12:11:55 localhost kernel: Pid: 1601, comm: Xorg Not tainted 2.6.33-1.fc13.x86_64 #1
Mar 10 12:11:55 localhost kernel: Call Trace:
Mar 10 12:11:55 localhost kernel: [<ffffffff8107d871>] print_circular_bug+0xaf/0xbd
Mar 10 12:11:55 localhost kernel: [<ffffffff8107e6c1>] __lock_acquire+0xa27/0xd2c
Mar 10 12:11:55 localhost kernel: [<ffffffff8107eaa2>] lock_acquire+0xdc/0x102
Mar 10 12:11:55 localhost kernel: [<ffffffff810f1a00>] ? might_fault+0x5c/0xac
Mar 10 12:11:55 localhost kernel: [<ffffffff810f1a2d>] might_fault+0x89/0xac
Mar 10 12:11:55 localhost kernel: [<ffffffff810f1a00>] ? might_fault+0x5c/0xac
Mar 10 12:11:55 localhost kernel: [<ffffffffa0061fc5>] ? ttm_bo_validate+0xae/0xf7 [ttm]
Mar 10 12:11:55 localhost kernel: [<ffffffffa007e849>] validate_list+0x22b/0x288 [nouveau]
Mar 10 12:11:55 localhost kernel: [<ffffffffa007fa7a>] nouveau_gem_ioctl_pushbuf+0xca9/0xcdf [nouveau]
Mar 10 12:11:55 localhost kernel: [<ffffffffa0019418>] drm_ioctl+0x28f/0x373 [drm]
Mar 10 12:11:55 localhost kernel: [<ffffffffa007edd1>] ? nouveau_gem_ioctl_pushbuf+0x0/0xcdf [nouveau]
Mar 10 12:11:55 localhost kernel: [<ffffffff8112bcfc>] vfs_ioctl+0x32/0xa6
Mar 10 12:11:55 localhost kernel: [<ffffffff8112c27c>] do_vfs_ioctl+0x490/0x4d6
Mar 10 12:11:55 localhost kernel: [<ffffffff8112c318>] sys_ioctl+0x56/0x79
Mar 10 12:11:55 localhost kernel: [<ffffffff81009c72>] system_call_fastpath+0x16/0x1b
*** Bug 579668 has been marked as a duplicate of this bug. *** *** Bug 577120 has been marked as a duplicate of this bug. *** Setting this low severity as it doesn't seem to have any visible negative effects. -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers *** Bug 589011 has been marked as a duplicate of this bug. *** This message is a reminder that Fedora 13 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 13. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '13'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 13's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 13 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping Haven't seen this in a very long time; definitely never on F14. Thanks for the update! (In reply to comment #7) > Haven't seen this in a very long time; definitely never on F14. Although, upon second thought, that doesn't mean anything, as these kernels don't have lock debugging enabled. I'll try to run an enabled kernel for the next few days and see if anything turns up. No, not happening anymore. |
Created attachment 399110 [details] log excerpt Version-Release number of selected component (if applicable): 2.6.33-1.fc13.x86_64 #1 How reproducible: I don't know; I've been running a GNOME-session all day without doing anything fancy. Actual results: see attached file Additional info: Hardware is a Compaq dc7900 with nVidia Corporation Quadro NVS 290 (rev a1)