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[Qemu-devel] SLIRP segfault?
From: |
John Snow |
Subject: |
[Qemu-devel] SLIRP segfault? |
Date: |
Wed, 2 Sep 2015 14:01:07 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 |
There was a downstream bug filed against qemu-kvm-2.3.1-1.fc22.x86_64
that appeared to segfault in the AHCI code when trying to install OSX
Yosemite.
The debug output looked a little strange, so I asked for a new
stack-trace on an upstream build using --enable-debug to disable
optimizations.
This trace came back as segfaulting in SLIRP.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1255144
--enable-debug trace: https://bugzilla.redhat.com/attachment.cgi?id=1069114
I don't have OSX to try to reproduce, diagnose and debug. Anyone here
have any thoughts?
===
Here is a paraphrased summary of the problem from reporter Dick Marinus:
'Version: qemu-kvm-2.3.1-1.fc22.x86_64
Steps to Reproduce:
1. Install OS X Yosemite using these instructions
http://www.contrib.andrew.cmu.edu/~somlo/OSXKVM/
2. Do some CPU intensive task like compressing a large file
Actual results:
qemu-kvm crashes with a segmentation failure'
'The backtrace completely changed but it is reproducable using
qemu-2.3.1 compiled with:
'./configure' '--target-list=x86_64-softmmu' '--enable-debug'
'--enable-kvm' '--enable-spice' '--prefix=/home/meeuw/git/qemu/'
print ad->cur_cmd obviously doesn't work for this backtrace.
I've tried qemu (git) master a few weeks ago and it didn't segfault but
OS X crashed (freezed) anyway.'
--js
- [Qemu-devel] SLIRP segfault?,
John Snow <=