Bug 227203
Summary: | idr_remove called for id=0 which is not allocated. | ||||||||||
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Product: | [Fedora] Fedora | Reporter: | Bernd Bartmann <bernd.bartmann> | ||||||||
Component: | kernel | Assignee: | Aristeu Rozanski <arozansk> | ||||||||
Status: | CLOSED NEXTRELEASE | QA Contact: | Brian Brock <bbrock> | ||||||||
Severity: | medium | Docs Contact: | |||||||||
Priority: | medium | ||||||||||
Version: | 6 | CC: | arozansk, wtogami | ||||||||
Target Milestone: | --- | ||||||||||
Target Release: | --- | ||||||||||
Hardware: | i686 | ||||||||||
OS: | Linux | ||||||||||
Whiteboard: | |||||||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||||||
Doc Text: | Story Points: | --- | |||||||||
Clone Of: | Environment: | ||||||||||
Last Closed: | 2007-03-12 15:05:48 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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Description
Bernd Bartmann
2007-02-03 14:29:15 UTC
Created attachment 147273 [details]
output of dmesg
Created attachment 147282 [details]
Yet another dmesg output this time from an FC7T1 system x86_64
Attached another dmesg output, this time from an FC7T1 x86_64 system (DELL
Latitude D620 laptop).
BTW: There is no product / version for FC7T1 in Bugzilla yet.
Can you test the kernel on http://people.redhat.com/arozansk/ptytest/fc6/ and tell me if you can reproduce the problem? Thanks, Just installed the i686 ptytest kernel on the FC6 PIV HT system. I couldn't see the error message so far. Is there any way to trigger the error? Created attachment 149770 [details]
testcase
This testcase (compile with gcc -lpthread -o pty_testcase pty_testcase.c)
triggers
the error much more easily on some machines. You may test this testcase with
your
unpatched kernel to check if it triggers then boot on the patched kernel to
verify.
Beware: this message you're hitting may cause another bigger bug that makes
impossible to allocate more ptys, thus you won't be able to open other openssh
sessions, so it's recommended it's tested in a local machine.
Ok, tested pty_testcase on 2.6.19-1.2911.6.5.fc6 (latest FC6 kernel update). On this kernel the bug is 100% reproducible and fills /var/log/messages with call traces. I can't reproduce the problem on the test kernel 2.6.20-1.2922.fc6.ptytest. ptytest keeps running with no output at all and nothing is logged to /var/log/messages. I just checked and the fix were included on the latest FC-6 CVS kernel, so it'll be available on the next update. If it's still reproducible on kernel versions newer than 2.6.20-1.2925, please reopen this ticket. Thanks |