Bug 105071 - Semi-reliable kernel crashes after 2 to 4 days uptime
Summary: Semi-reliable kernel crashes after 2 to 4 days uptime
Status: NEW
Alias: None
Product: Other
Classification: Unclassified
Component: Other (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: other_other
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-09-27 04:48 UTC by Alex Unigovsky
Modified: 2015-09-27 20:06 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.1.5, 4.1.6
Subsystem:
Regression: No
Bisected commit-id:


Attachments
Kernel warning when using 4.1.6 (3.13 KB, text/plain)
2015-09-27 08:07 UTC, Alex Unigovsky
Details
Crash log when running 4.1.7 kernel (11.46 KB, text/plain)
2015-09-27 20:06 UTC, Alex Unigovsky
Details

Description Alex Unigovsky 2015-09-27 04:48:02 UTC
Hello all.

Sorry to double-post here after reporting this very same issue to Fedora bugtracker, but I couldn't get any answers there.

I'm experiencing crashes on 2 different machines (albeit with similar hardware). These machines run identical diskless (netbooted to custom ramdisk created using livecd-tools) VPN server images. Workload includes accel-ppp (PPTP/L2TP server), bird (OSPF), snmpd (monitoring) and the usual ntp/ssh/etc.

All machines run x86-64 on rather old 1- and 2-socketed Intel platforms (S1200BTL or S3210SH), using 4GB RAM and e1000/e1000e NICs.

Crashes occur semi-randomly, starting from 2 days to 2 weeks after bootup. No memory exhaustion can be observed, and CPU load tops at 10% (approx. 5% user + 5% interrupts).

My related Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=1260391

You can find kernel bug tracebacks there, or via direct links:

For 4.1.5:
https://bugzilla.redhat.com/attachment.cgi?id=1070710

For 4.1.6:
https://bugzilla.redhat.com/attachment.cgi?id=1075750
https://bugzilla.redhat.com/attachment.cgi?id=1075751

I can also directly attach these to this bug if you prefer.

I'm currently running 4.1.7 kernel image (stock Fedora) with netconsole enabled - but not enough time has passed yet.

Once again, excuse my audacity.
Comment 1 Alex Unigovsky 2015-09-27 08:06:19 UTC
Not sure if related, but i've just got the following warning via netconsole on the last machine running 4.1.6 kernel (attached).
Comment 2 Alex Unigovsky 2015-09-27 08:07:33 UTC
Created attachment 188651 [details]
Kernel warning when using 4.1.6
Comment 3 Alex Unigovsky 2015-09-27 20:06:35 UTC
Experienced new crash on 4.1.7 fedora kernel. Crash log is attached. Nothing seems to help.
Comment 4 Alex Unigovsky 2015-09-27 20:06:58 UTC
Created attachment 188681 [details]
Crash log when running 4.1.7 kernel

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