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Diffstat (limited to 'results/classifier/accel-gemma3:12b/kvm/1013241')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/kvm/1013241 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/kvm/1013241 b/results/classifier/accel-gemma3:12b/kvm/1013241 new file mode 100644 index 000000000..6756f0cc5 --- /dev/null +++ b/results/classifier/accel-gemma3:12b/kvm/1013241 @@ -0,0 +1,27 @@ + +qemu-system-ppc64 hanging occasionally in disk writes + +I found last week that qemu-system-ppc64 (from git) hangs occasionally +under load, and I have a reproducer for it now. Unfortunately the +reproducer really takes a long time to run -- usually I can get a hang +in under 12 hours. + +Here is the reproducer case: + + https://lists.fedoraproject.org/pipermail/ppc/2012-June/001698.html + +Notes: + +(1) Verified by one other person (other than me). Happens on both + ppc64 and x86-64 host. + +(2) Happens with both Fedora guest kernel 3.3.4-5.fc17.ppc64 and kernel + 3.5.0 that I compiled myself. The test case above contains 3.3.4-5. + +(3) Seems to be a problem in qemu, not the guest. The reason I think + this is because I tried to capture a backtrace of the hang using + remote gdb, but gdb just hung when trying to connect to qemu + (gdb connects fine before the bug happens). + +(4) Judging by guest messages, appears to be happening when writing + to the disk. \ No newline at end of file |