Messages in this thread | | | Date | Tue, 9 Jul 2013 11:11:35 +1000 | Subject | Re: sending SEGV to qemu crashes host kernel in Fedora 19 | From | Dave Airlie <> |
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On Tue, Jul 9, 2013 at 10:35 AM, Dave Airlie <airlied@gmail.com> wrote: > Hi, > > F19 > kernel-3.9.8-300.fc19.x86_64 > qemu-kvm-1.4.2-4.fc19.x86_64 > > If I start a complete F19 install in the guest and send the qemu > process a SEGV signal, the host kernel starts giving me random kmalloc > errors soon after, if I send a normal kill signal things seem fine. > > CPU is Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz, on a HP 220z workstation. > > I initially blamed bad RAM but this reproduces everytime, and I > swapped DIMMs around > > I haven't tested with upstream kernel/qemu yet, but I wondered if > anyone else has seen this. > > I noticed this because some work I was doing was segfaulting my qemu > and then my machine would die a few mins later.
Of course now I read my fedora kernel emails and notice vhost_net does bad things,
disabling vhost_net seems to make it work fine, hopefully the next Fedora kernel will bring the magic fixes.
Dave.
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