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Re: [Qemu-devel] [PATCH 2/5] pr-helper: fix assertion failure on failed
From: |
Michal Privoznik |
Subject: |
Re: [Qemu-devel] [PATCH 2/5] pr-helper: fix assertion failure on failed multipath PERSISTENT RESERVE IN |
Date: |
Tue, 26 Jun 2018 18:25:03 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 |
On 06/26/2018 05:40 PM, Paolo Bonzini wrote:
> The response size is expected to be zero if the SCSI status is not
> "GOOD", but nothing was resetting it.
>
> This can be reproduced simply by "sg_persist -s /dev/sdb" where /dev/sdb
> in the guest is a scsi-block device corresponding to a multipath device
> on the host.
>
> Before:
>
> PR in (Read full status): Aborted command
>
> and on the host:
>
> prh_write_response: Assertion `resp->sz == 0' failed.
>
> After:
>
> PR in (Read full status): bad field in cdb or parameter list
> (perhaps unsupported service action)
>
> Reported-by: Jiri Belka <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
> scsi/qemu-pr-helper.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
Reviewed-by: Michal Privoznik <address@hidden>
Michal
- Re: [Qemu-devel] [PATCH 1/5] pr-helper: fix --socket-path default in help, (continued)