[Bug 461321] New: DM-crypt lockup with heavy accesses
https://bugzilla.novell.com/show_bug.cgi?id=461321 Summary: DM-crypt lockup with heavy accesses Product: openSUSE 11.1 Version: Final Platform: i586 OS/Version: openSUSE 11.1 Status: NEW Severity: Critical Priority: P5 - None Component: Kernel AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: f+novell@congenio.de QAContact: qa@suse.de Found By: Customer I have a lockup when I access a LUKS-encrypted device on a LVM volume. My system seems locked up for any I/O. Open SSH shells don't respond, file I/O is suspended, keyboard input does not stop screen saver. However, intrinsic operations such as TCP/IP seem to work (system responds to pings). This worked fine with SuSE 10.3, with kernel 2.6.22.19-0.1-bigsmp, BTW. The system was upgraded to openSUSE 11.1 with 2.6.27 and froze up 4 times in 48 hours with moderate file I/O. This is a condition which I have seen from time to time when the kernel internal crypto APIs have changed. Devicemapper seems to be very prone to these conditions, even more so if multiple layers of DM-devices stack up. I believe, there were changes around 2.6.24/2.6.25 which may have caused this: http://lkml.indiana.edu/hypermail/linux/kernel/0803.1/2389.html http://www.archivum.info/dm-devel@redhat.com/2008-06/msg00007.html This one is a major showstopper for me. -- 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=461321 User jnelson-suse@jamponi.net added comment https://bugzilla.novell.com/show_bug.cgi?id=461321#c1 Jon Nelson <jnelson-suse@jamponi.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jnelson-suse@jamponi.net --- Comment #1 from Jon Nelson <jnelson-suse@jamponi.net> 2008-12-31 16:35:46 MST --- I don't know if I'm having quite the same problem, but after *0* (zero) problems (other than some slowness) with luks-backed encrypted home directories with 10.3 and 11.0, I recently upgraded to 11.1. Since then I've had some MAJOR problems including some filesystem corruption on my (encrypted) home directory! It has taken me almost 5 hours to recover from the corruption, thanks to a fairly recent backup, but I had *no* problems with 11.0 and so far 11.1 is not turning out well for me. I will note that /var/log/messages also, somehow, got a chunk of data that was clearly intended for my postgresql instance (also on /var) during this same period. I've also filed another bug on 11.1's failure to properly handle encrypted volumes with pam_mount, both due to upgrade issues *and* due to a failure to recognize that the volume is already mounted!! -- 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=461321 Andreas Jaeger <aj@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|bnc-team-screening@forge.pr |kernel-maintainers@forge.pr |ovo.novell.com |ovo.novell.com -- 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=461321 Greg Kroah-Hartman <gregkh@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|kernel-maintainers@forge.pr |lmb@novell.com |ovo.novell.com | -- 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=461321 Lars Marowsky-Bree <lmb@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|lmb@novell.com |knikanth@novell.com -- 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=461321 User knikanth@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=461321#c2 Nikanth K <knikanth@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P3 - Medium Status|NEW |NEEDINFO CC| |knikanth@novell.com Found By|Customer |Community User Info Provider| |f+novell@congenio.de --- Comment #2 from Nikanth K <knikanth@novell.com> 2009-02-26 04:48:53 MST --- I have included the mainline commits 6c031f41db15b6cb0cd33545cec28ca706cd3c7e (fixes a bug in ref count) 4e59409891c9cc30cb4d5d73250b0c968af8e39b (fixes a race in ref count) and 1e37bb8e557a186d327eb4d1387953880ffc2cdd (makes applying above patches easier) And built a test kernel for you available at http://www.suse.com/~knikanth/bnc461321/ Can you please test with it? -- 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=461321 User f+novell@congenio.de added comment https://bugzilla.novell.com/show_bug.cgi?id=461321#c3 Uwe Meyer-Gruhl <f+novell@congenio.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |f+novell@congenio.de --- Comment #3 from Uwe Meyer-Gruhl <f+novell@congenio.de> 2009-03-08 05:48:26 MST --- I wanted to test, but I do not dare on my production system. When I tried it on a freshly-installed test system, I could not reproduce the bug within 24 hours even with an unmodified kernel. But I think there was a kernel update in the meantime which got applied during online update? Alas, I cannot tell if the patches fix anything over the now-current version. -- 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=461321 User knikanth@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=461321#c4 Nikanth K <knikanth@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |RESOLVED Info Provider|f+novell@congenio.de | Resolution| |WORKSFORME --- Comment #4 from Nikanth K <knikanth@novell.com> 2009-03-08 23:51:47 MST --- Ok. Thanks for reporting. I am closing this report now as it is not reproducible. Please reopen the bug if you see the issue again. BTW do you remember the exact kernel version when this problem was seen? It may be possible to get this information from the date and /var/log/zypp/history. This would help in verifying whether anything got fixed here. -- 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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