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Bug 644962 - 4.14.x-gentoo - Kernel BUG: unable to handle kernel NULL pointer dereference. xfs_buf_obj_cmp.
Summary: 4.14.x-gentoo - Kernel BUG: unable to handle kernel NULL pointer dereference....
Status: RESOLVED OBSOLETE
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: AMD64 Linux
: Normal normal
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-01-18 16:12 UTC by Alexander Miroshnichenko
Modified: 2018-04-07 15:14 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

Attachments
Kernel config (config-4.14.14-gentoo,124.88 KB, text/plain)
2018-01-18 16:12 UTC, Alexander Miroshnichenko 		Details
Call Trace (call-trace.txt,16.67 KB, text/plain)
2018-01-18 16:13 UTC, Alexander Miroshnichenko 		Details
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Description Alexander Miroshnichenko 2018-01-18 16:12:28 UTC 
Created attachment 515244 [details]
Kernel config

Guest VM hungs if kernel 4.14.x on host and guest vm with attached config.
I tried 4.14.8, 4.14.13 with same issue.

QEMU-KVM: app-emulation/qemu-2.10.1-r1

How to reproduce:
- Compile and install kernel from gentoo-sources with attached kernel config.
- Install compiled kernel on host and guest systems
- Try to compile something big or do nothing and wait some time (from couple of minutes to couple of hours)
- Guest VM unresposive. Kernel hungs.


Call Trace attached
Comment 1 Alexander Miroshnichenko 2018-01-18 16:13:04 UTC 
Created attachment 515246 [details]
Call Trace