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Re: [Qemu-block] [Qemu-devel] question： Does qemu-pr-helper have its ow
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From: |
Daniel P . Berrangé |
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Subject: |
Re: [Qemu-block] [Qemu-devel] question： Does qemu-pr-helper have its own log files？ |
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Date: |
Tue, 23 Apr 2019 10:42:17 +0100 |
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User-agent: |
Mutt/1.11.3 (2019-02-01) |
On Tue, Apr 23, 2019 at 11:12:40AM +0800, Jie Wang wrote:
> Does qemu-pr-helper have its own log files？
When QEMU launches it, i think it just inherits stdout/err from
QEMU itself, so errors appear mixed into QEMU's stdout output.
When libvirt launches it, there stdout is connected to /dev/null
and stderr is connected to a pipe which libvirt closes almost
immediately. This means any errors are lost as any attempt to
write to stderr will get EPIPE :-(
Regards,
Daniel
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