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From: | Lutz Vieweg |
Subject: | Re: [Qemu-block] [Qemu-devel] I/O errors reported to guest for raw-image-file backed /dev/vda - but host sees no I/O errors |
Date: | Wed, 20 Apr 2016 16:38:19 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 |
On 04/20/2016 01:50 PM, Kevin Wolf wrote:
To catch all possible write failures, I think pwrite, pwritev and possibly fdatasync need to be considered.
I've now a
strace -f -p 10727 -e trace=pwrite,pwritev,fdatasync,file -t 2>&1 | gzip -1 -c >trace.gz
attached to the qemu-process. If the incident rate stays the same, by tomorrow I should be able to correlate newly emitted I/O-errors in the guest with that log. Regards, Lutz Vieweg
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