Bug 457670
| Summary: | rt61pci: possible recursive locking detected | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | David Nielsen <gnomeuser> |
| Component: | kernel | Assignee: | John W. Linville <linville> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2008-08-12 15:39:24 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: | |||
*** This bug has been marked as a duplicate of bug 457592 *** |
Description of problem: I am seeing the following lockdep warning at boot as well as experiencing random frequent lockups. I suspect the two are related but am not sure. ============================================= [ INFO: possible recursive locking detected ] 2.6.27-0.211.rc1.git3.fc10.x86_64 #1 --------------------------------------------- rt61pci/1206 is trying to acquire lock: (_xmit_IEEE80211#2){-...}, at: [<ffffffffa01e7c52>] ieee80211_scan_completed+0x142/0x2e2 [mac80211] but task is already holding lock: (_xmit_IEEE80211#2){-...}, at: [<ffffffffa01e7c52>] ieee80211_scan_completed+0x142/0x2e2 [mac80211] other info that might help us debug this: 3 locks held by rt61pci/1206: #0: ((name)){--..}, at: [<ffffffff81054572>] run_workqueue+0xb6/0x207 #1: (&(&local->scan_work)->work){--..}, at: [<ffffffff81054572>] run_workqueue+0xb6/0x207 #2: (_xmit_IEEE80211#2){-...}, at: [<ffffffffa01e7c52>] ieee80211_scan_completed+0x142/0x2e2 [mac80211] stack backtrace: Pid: 1206, comm: rt61pci Not tainted 2.6.27-0.211.rc1.git3.fc10.x86_64 #1 Call Trace: [<ffffffff8106686d>] __lock_acquire+0x790/0xaa7 [<ffffffff810551e0>] ? queue_delayed_work_on+0xe4/0xf8 [<ffffffffa01e7c52>] ? ieee80211_scan_completed+0x142/0x2e2 [mac80211] [<ffffffff81066c1a>] lock_acquire+0x96/0xc3 [<ffffffffa01e7c52>] ? ieee80211_scan_completed+0x142/0x2e2 [mac80211] [<ffffffff8130c718>] _spin_lock+0x2b/0x58 [<ffffffffa01e7c52>] ieee80211_scan_completed+0x142/0x2e2 [mac80211] [<ffffffff81054572>] ? run_workqueue+0xb6/0x207 [<ffffffffa01e80a3>] ieee80211_sta_scan_work+0xb4/0x1ad [mac80211] [<ffffffff810545bc>] run_workqueue+0x100/0x207 [<ffffffffa01e7fef>] ? ieee80211_sta_scan_work+0x0/0x1ad [mac80211] [<ffffffff810547c0>] worker_thread+0xfd/0x111 [<ffffffff810584f1>] ? autoremove_wake_function+0x0/0x3d [<ffffffff810546c3>] ? worker_thread+0x0/0x111 [<ffffffff81058174>] kthread+0x4e/0x7b [<ffffffff810118a9>] child_rip+0xa/0x11 [<ffffffff81010bbe>] ? restore_args+0x0/0x30 [<ffffffff81058126>] ? kthread+0x0/0x7b [<ffffffff8101189f>] ? child_rip+0x0/0x11 Version-Release number of selected component (if applicable): 2.6.27-0.211.rc1.git3.fc10.x86_64 How reproducible: 100% Steps to Reproduce: 1. install 2.6.27-0.211.rc1.git3.fc10.x86_64 2. boot Actual results: Note lockdep warning, and also notice how the machine likes to lock up at rather random times. Expected results: Additional info: