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Re: [Qemu-stable] [PATCH for 2.11 0/2] QEMU crashes with CD device witho
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-stable] [PATCH for 2.11 0/2] QEMU crashes with CD device without media |
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Date: |
Tue, 28 Nov 2017 17:08:05 +0100 |
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User-agent: |
Mutt/1.9.1 (2017-09-22) |
Am 28.11.2017 um 13:10 hat Denis V. Lunev geschrieben:
> There are 2 cases I have spotted so far:
> 1) IDE ATAPI read processing. Actually this was reported from field
> 2) QEMU IO hmp command (found during evaluation of (1))
>
> SCSI code checks during access that blk_is_available(). These patches add
> same checks on different code paths.
>
> Pls decide whether these patches should go through sub-system trees or via
> block tree.
Why does this always come up in the last minute? :-(
The real fix shouldn't be in the devices, but blk_aio_*() needs to
handle empty drives gracefully. We already made a similar fix before the
last release in commit 4da97120d, and I already didn't like it back
then.
Of course, we should have used the time to fix this properly, but as you
can see, nothing has happened and we're running out of time again.
Kevin