diff options
| author | Joshua Washington <joshwash@google.com> | 2026-09-30 14:47:35 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-10-05 16:59:56 -0700 |
| commit | 0cb6939a4dfefa822007b7a71986e06bc4f61f54 (patch) | |
| tree | 6c2bcf3bb3fe2cb4ff16bbe4e2224e96ea97dfd3 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 9fed6a8ab8a5bacba2c709cb19d2dd6d2fa9112e (diff) | |
| download | linux-0cb6939a4dfefa822007b7a71986e06bc4f61f54.tar.gz linux-0cb6939a4dfefa822007b7a71986e06bc4f61f54.zip | |
gve: fix napi_disable deadlock when attempting to disable XSK pools
When disabling XSK pools, GVE calls the unlocked versions of
napi_disable and napi_enable. However, the netdev lock has already been
acquired before ndo_bpf is called because GVE supports queue management
ops. Calling the unlocked versions of napi_disable/enable results in a
deadlock when attempting to disable XSK pools, as the thread attempts to
re-acquire a lock it already holds.
Update the NAPI calls to use the locked versions.
This issue was found in production.
Fixes: 606048cbd834 ("net: designate XSK pool pointers in queues as "ops protected"")
Cc: stable@vger.kernel.org
Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com>
Reviewed-by: Jordan Rhee <jordanrhee@google.com>
Signed-off-by: Joshua Washington <joshwash@google.com>
Link: https://patch.msgid.link/20260930214735.3288780-4-joshwash@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions
