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boot: 0.579
graphic: 0.565
device: 0.387
instruction: 0.250
semantic: 0.199
socket: 0.174
other: 0.138
vnc: 0.118
network: 0.111
mistranslation: 0.111
assembly: 0.026
KVM: 0.018
Recent regression: segfault on startup with -snapshot
As of git revision 041ccc922ee474693a2869d4e3b59e920c739bc0, qemu segfaults on startup when I try to boot a hard disk image with the -snapshot option.
To reproduce:
wget http://wiki.qemu.org/download/linux-0.2.img.bz2
bunzip2 linux-0.2.img.bz2
qemu-system-i386 -hda linux-0.2.img -snapshot
When I run this, qemu-system-i386 crashes with a segmentation fault. This is on a Debian 7 amd64 host.
git bisect implicates the following commit:
commit a464982499b2f637f6699e3d03e0a9d2e0b5288b
Author: Paolo Bonzini <email address hidden>
Date: Wed Feb 11 17:15:18 2015 +0100
rcu: run RCU callbacks under the BQL
This needs to go away sooner or later, but one complication is the
complex VFIO data structures that are modified in instance_finalize.
Take a shortcut for now.
Reviewed-by: Michael Roth <email address hidden>
Tested-by: Michael Roth <email address hidden>
Signed-off-by: Paolo Bonzini <email address hidden>
I believe this was resolved in:
commit 6b49809c597331803ea941eadda813e5bb4e8fe2
Author: Paolo Bonzini <email address hidden>
Date: Fri Feb 27 19:58:23 2015 +0100
cpus: fix deadlock and segfault in qemu_mutex_lock_iothread
The problem cannot be reproduced in qemu.git/master (fc85cf4a8199a657fdfd5fb902f1835973406454).
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