Re: [Xen-devel] [PATCH] common/gnttab: Process softirqs while dumping grant tables

[Julien Grall <julien.grall@xxxxxxx>]

Hi Andrew,

On 05/04/2019 17:33, Andrew Cooper wrote:
> OSSTests upgrade to Jessie has identified that with a sufficiently large grant
> table, a watchdog timeout can occur.
>
> http://logs.test-lab.xenproject.org/osstest/logs/134399/test-amd64-amd64-xl-qemuu-debianhvm-amd64-shadow/serial-chardonnay0.log
OSSTest log usually disappear after a few days. Who it be possible to copy the 
relevant part of the log instead?
Cheers,

> Reported-by: Ian Jackson <Ian.Jackson@xxxxxxxxxx>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> ---
> CC: Jan Beulich <JBeulich@xxxxxxxx>
> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
> CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> CC: Julien Grall <julien.grall@xxxxxxx>
> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxx>
> ---
>   xen/common/grant_table.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c
> index 80728ea..344b3ee 100644
> --- a/xen/common/grant_table.c
> +++ b/xen/common/grant_table.c
> @@ -3956,6 +3956,9 @@ static void gnttab_usage_print(struct domain *rd)
>           uint16_t status;
>           uint64_t frame;
>   
> +        if ( !(ref & 31) )
> +            process_pending_softirqs();
> +
>           act = active_entry_acquire(gt, ref);
>           if ( !act->pin )
>           {
--
Julien Grall

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