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Re: [Qemu-devel] [Qemu-block] [PATCH] Fix Guest VM crash due to iSCSI Se
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [Qemu-block] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error |
Date: |
Thu, 11 Jul 2019 14:24:36 +0200 |
User-agent: |
Mutt/1.12.0 (2019-05-25) |
On Sun, Jul 07, 2019 at 07:55:03PM -0700, address@hidden wrote:
Reviewed-by: Stefan Hajnoczi <address@hidden>
CCing John Snow, IDE maintainer.
You can use scripts/get_maintainer.pl -f hw/ide/core.c to find out who
to send patches to.
Stefan
> From: Shaju Abraham <address@hidden>
>
> During the IDE DMA transfer for a ISCSI target,when libiscsi encounters
> a SENSE KEY error, it sets the task->sense to the value "COMMAND ABORTED".
> The function iscsi_translate_sense() later translaters this error to
> -ECANCELED
> and this value is passed to the callback function. In the case of IDE DMA
> read
> or write, the callback function returns immediately if the value of the ret
> argument is -ECANCELED.
> Later when ide_cancel_dma_sync() function is invoked the assertion
> "s->bus->dma->aiocb == ((void *)0)" fails and the qemu process gets
> terminated.
> Fix the issue by making the value of s->bus->dma->aiocb = NULL when
> -ECANCELED is passed to the callback.
>
> Signed-off-by: Shaju Abraham <address@hidden>
> ---
> hw/ide/core.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/ide/core.c b/hw/ide/core.c
> index 6afadf8..78ea357 100644
> --- a/hw/ide/core.c
> +++ b/hw/ide/core.c
> @@ -841,6 +841,7 @@ static void ide_dma_cb(void *opaque, int ret)
> bool stay_active = false;
>
> if (ret == -ECANCELED) {
> + s->bus->dma->aiocb = NULL;
> return;
> }
>
> --
> 1.9.4
>
>
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- [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, shaju . abraham, 2019/07/08
- Re: [Qemu-devel] [Qemu-block] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error,
Stefan Hajnoczi <=
- Re: [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, John Snow, 2019/07/25
- Re: [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, John Snow, 2019/07/26
- Re: [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, Stefan Hajnoczi, 2019/07/29
- Re: [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, John Snow, 2019/07/29
- Re: [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, Paolo Bonzini, 2019/07/29
- Re: [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, John Snow, 2019/07/29
- Re: [Qemu-devel] [PATCH] Fix Guest VM crash due to iSCSI Sense Key error, Paolo Bonzini, 2019/07/29