Bug 155472 (CFQ)
| Summary: | Unplugging USB key causes kernel panic (cfq-iosched.c:1065: spin_is_locked) | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Sitsofe Wheeler <sitsofe> |
| Component: | kernel | Assignee: | Dave Jones <davej> |
| Status: | CLOSED ERRATA | QA Contact: | Brian Brock <bbrock> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3 | CC: | bugzilla, cefrodrigues, clscience, elicarter, ghamar, jks, mdc1, njh, noldoli, persteinar.iversen, pfrields, prigault, public, thornton, twaugh |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-05-27 00:55:29 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: | |||
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Description
Sitsofe Wheeler
2005-04-20 17:58:20 UTC
Bug #154690 is also a good dup candidate. I forgot one key step: 4.5. Physically remove the key from the machine. Without this step the problem will not manifest itself. I have tested this on a newer kernel-2.6.11-1.1251_FC4 (PS this kernel seems to have some extra selinux stuff that causes trouble on FC3 in enforcing mode due to xyz producing denied errors) and this is the output: Kernel panic - not syncing: drivers/block/cfq-iosched.c:1070: spin_is_locked on unititialized spinlock c55b6348. (Not tainted) [<c01201db>] panic+0x3b/0x1b0 [<c028ef37>] cfq_exit_io_context+0x127/0x3b0 [<c0287a2f>] exit_io_context+0x3f/0x50 [<c0123d72>] do_exit+0x42/0x4d0 [<c01242db>] do_group_exit+0x9b/0x1b0 [<c01039e9>] syscall_call+0x7/0xb Can you try the test kernel from http://people.redhat.com/davej/kernels/Fedora/FC3/RPMS.kernel/ and see if that fixes it ? I'm seeing the same problem with an external USB 2.0 Lacie hard-drive. Steps to reproduce: 1. Plug the drive or boot the machine with it already plugged in 2. mount 3. unmount 4. turn off the drive 5. reboot 6. (kernel panic) I tried with 2.6.11-1.19_FC3, looks fixed. :) (sorry for the sloth like response on this) Tested with two different keys on 2.6.11-1.19_FC3 and the problem errors on shutdown no longer appear. The smug people who have been locking up machines with their USB keys have been thwarted and davej saves the day again. Thanks for the fast turn around. Let's see, how shall we resolve this... *** Bug 156050 has been marked as a duplicate of this bug. *** reopening until this gets pushed out as an update. *** Bug 156593 has been marked as a duplicate of this bug. *** Dave Jone's Kernel works for me and for many others. Where's the problem to release a fixed kernel? USB-Sticks/devices are used very heavily. This bug damages fedora's reputation a lot!? 2.6.11-1.21_FC3 fixees the problem I was seeing in bug #156593. *** Bug 157016 has been marked as a duplicate of this bug. *** *** Bug 156750 has been marked as a duplicate of this bug. *** *** Bug 155961 has been marked as a duplicate of this bug. *** *** Bug 157426 has been marked as a duplicate of this bug. *** *** Bug 158326 has been marked as a duplicate of this bug. *** I suggest that 'kernel panic' be put in the subject somewhere to avoid dups. (In reply to comment #17) > I suggest that 'kernel panic' be put in the subject somewhere to avoid dups. I'd suggest releasing a working kernel. I don't have this problem anymore with Dave Jones's kernel (see comment 3). I'm normally loathe to change subjects because it causes unecessary spam to the people cc'd, makes subjects so long they don't fit neatly in the bug lists and leads to subject tug of wars (plus I did include a bit of the error for people to search on AND if you do a search on body text then the words kernel panic will show up PLUS if you use the secret bugzilla technique of searching bugs that were marked as DUPLICATE then you often find bugs with subjects you are expecting which then point to an open bug). I'm not that convinced that this change will stop the dups but I'll make an exception this once and apologise for spamming people. *** Bug 154690 has been marked as a duplicate of this bug. *** *** Bug 155979 has been marked as a duplicate of this bug. *** *** Bug 154672 has been marked as a duplicate of this bug. *** Was this fixed in 2.6.11-1.27_FC3 ? yes *** Bug 157275 has been marked as a duplicate of this bug. *** |