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Re: [Qemu-devel] qemu-system-sparc64 hang (possibly virtio related?) wit
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] qemu-system-sparc64 hang (possibly virtio related?) with 2.1 |
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Date: |
Wed, 3 Sep 2014 11:41:21 +0100 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Tue, Sep 02, 2014 at 02:12:45PM +0100, Mark Cave-Ayland wrote:
> Fortunately I can reproduce the issue with a debug-enabled build of
> qemu-system-sparc64, and I've posted a backtrace obtained during the hung
> state at http://www.ilande.co.uk/tmp/sparc64-gdb-bt.txt. I can't see
> anything too obvious, other than that the ppoll() could possibly be waiting
> for a bad file descriptor?
The backtrace looks like a normal QEMU run. Nothing obvious there.
This suggests the QEMU monitor is still operational and the guest is
still executing code.
Does the I/O time out inside the guest? Normally messages are printed
in dmesg if I/O requests are pending for too long.
Stefan
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