[Bug 817531] New: kernel BUG at fs/dcache.c:875
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c0 Summary: kernel BUG at fs/dcache.c:875 Classification: openSUSE Product: openSUSE 12.3 Version: Final Platform: x86-64 OS/Version: openSUSE 12.3 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: pmlists@free.fr QAContact: qa-bugs@suse.de Found By: --- Blocker: --- Created an attachment (id=537186) --> (http://bugzilla.novell.com/attachment.cgi?id=537186) output of kernel crash User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:20.0) Gecko/20100101 Firefox/20.0 Hi, My system crashed with the attached output. Peter Reproducible: Couldn't Reproduce Steps to Reproduce: I don't know how to reproduce it. Actual Results: System crashed. To continue my work, I had to press the reset button. Expected Results: System should not crash. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c1 Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |jeffm@suse.com InfoProvider| |pmlists@free.fr Severity|Normal |Major --- Comment #1 from Jeff Mahoney <jeffm@suse.com> 2013-07-15 14:00:11 EDT --- Have you seen this happen again? This looks like it's probably memory corruption. It's a shame we don't dump the mismatched values. void prune_dcache_sb(struct super_block *sb, int count) { struct dentry *dentry; LIST_HEAD(referenced); LIST_HEAD(tmp); relock: spin_lock(&dcache_lru_lock); while (!list_empty(&sb->s_dentry_lru)) { dentry = list_entry(sb->s_dentry_lru.prev, struct dentry, d_lru); BUG_ON(dentry->d_sb != sb); <---- if (!spin_trylock(&dentry->d_lock)) { spin_unlock(&dcache_lru_lock); cpu_relax(); goto relock; } -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c2 Peter Münster <pmlists@free.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|pmlists@free.fr | --- Comment #2 from Peter Münster <pmlists@free.fr> 2013-07-15 18:39:27 UTC --- Hi, No. I attach the output of "zgrep BUG /var/log/messages*xz". There is only one line with fs/dcache.c What about the other BUG lines? Are they related? Should I make other bug reports? Peter -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c3 --- Comment #3 from Peter Münster <pmlists@free.fr> 2013-07-15 18:40:55 UTC --- Created an attachment (id=548036) --> (http://bugzilla.novell.com/attachment.cgi?id=548036) lines with "BUG" in my /var/log/messages* only one line with "fs/dcache.c" but perhaps some other interesting bugs -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c4 Peter Münster <pmlists@free.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #548036|0 |1 is obsolete| | --- Comment #4 from Peter Münster <pmlists@free.fr> 2013-07-15 18:47:27 UTC --- Created an attachment (id=548038) --> (http://bugzilla.novell.com/attachment.cgi?id=548038) lines with "BUG" in my /var/log/messages* in previous attachment, there were only line from messages*.xz here now some more lines also from /var/log/messages -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c5 --- Comment #5 from Jeff Mahoney <jeffm@suse.com> 2013-07-15 14:54:42 EDT --- No, only the first one matters. The others are due to crashing with locks held. If you haven't seen it happen again in the past 3 months, I propose we blame a transient memory error and close as INVALID. We can re-open if you run into it again. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c6 --- Comment #6 from Peter Münster <pmlists@free.fr> 2013-07-15 19:10:33 UTC --- All right. What about the other BUG lines, should I fill other bug reports? Peter -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c7 Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |INVALID --- Comment #7 from Jeff Mahoney <jeffm@suse.com> 2013-07-15 15:40:19 EDT --- No. Only the first BUG line matters. The others are a /result/ of the first one. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=817531 https://bugzilla.novell.com/show_bug.cgi?id=817531#c8 --- Comment #8 from Peter Münster <pmlists@free.fr> 2013-07-15 20:35:17 UTC --- I mean the last attachment (lines with "BUG" in my /var/log/messages*), not the first one. Peter -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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