[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH] xen/netback: avoid race in xenvif_rx_ring_slots_available()

On 02.02.21 16:26, Igor Druzhinin wrote:
On 02/02/2021 07:09, Juergen Gross wrote:
Since commit 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding")
xenvif_rx_ring_slots_available() is no longer called only from the rx
queue kernel thread, so it needs to access the rx queue with the
associated queue held.

Reported-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
Fixes: 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Appreciate a quick fix! Is this the only place that sort of race could
happen now?

I checked and didn't find any other similar problem.


Attachment: OpenPGP_0xB0DE9DD628BF132F.asc
Description: application/pgp-keys

Attachment: OpenPGP_signature
Description: OpenPGP digital signature



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.