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Old 10-11-11, 03:12 PM   #1
q7joey
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Join Date: Oct 2011
Posts: 5
Default kvm windows 7 guest segfaults under centos 5.7 with 285.05.09 driver from elrepo

basically, kvm guests would randomly segfault even when no console was being displayed. i normally use rdp to talk to my windows guest anyway, and i use vnc as the console, so very little activity should be going through the nvidia libraries.

i'm not going to be able to give much more detail since i had to drop back to 280.13 in order to keep my windows guest stable, but i was able to get the following stack trace from one of the segfaults.

#0 0x0000003a4a200a08 in _nv007tls ()
from /usr/lib64/nvidia/tls/libnvidia-tls.so.285.05.09
#1 0x00000030d4e05ad9 in __nptl_deallocate_tsd () from
/lib64/libpthread.so.0
#2 0x00000030d4e0674b in start_thread () from /lib64/libpthread.so.0
#3 0x00000030d42d44bd in clone () from /lib64/libc.so.6

and that address has been consistent through numerous segfaults:

Oct 10 08:15:16 charon kernel: qemu-kvm[25987]: segfault at 00000000000140a0 rip 0000003a4a200a08 rsp 00000000462d7080 error 4
Oct 10 10:33:34 charon kernel: qemu-kvm[26961]: segfault at 0000000000000088 rip 0000003a4a200a08 rsp 000000005f996080 error 4
Oct 10 11:34:14 charon kernel: qemu-kvm[27386]: segfault at 0000000000000001 rip 0000003a4a200a08 rsp 000000005a6fc080 error 4
Oct 11 08:09:17 charon kernel: qemu-kvm[32216]: segfault at 0000000000000001 rip 0000003a4a200a08 rsp 0000000044afa080 error 4
Oct 11 10:32:22 charon kernel: qemu-kvm[22121]: segfault at 0000000000000001 rip 0000003a4a200a08 rsp 0000000058c9c080 error 4

let me know if sending the nvidia-bug-report data would be useful given that i've gone back to the previous release.
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