Date: Tue, 7 Feb 2023 00:16:16 GMT From: Eric Joyner <erj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 4ad47cfc1458 - stable/13 - iflib: Add null check to iflib_stop() Message-ID: <202302070016.3170GGC4022252@gitrepo.freebsd.org>
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The branch stable/13 has been updated by erj: URL: https://cgit.FreeBSD.org/src/commit/?id=4ad47cfc1458263564dfecf483c5dfc253008b6f commit 4ad47cfc1458263564dfecf483c5dfc253008b6f Author: Przemyslaw Lewandowski <przemyslawx.lewandowski@intel.com> AuthorDate: 2023-01-24 23:41:15 +0000 Commit: Eric Joyner <erj@FreeBSD.org> CommitDate: 2023-02-07 00:16:02 +0000 iflib: Add null check to iflib_stop() Ever since gtaskqueue_drain() was added to iflib_stop(), a kernel panic occurs when the ice(4) driver is in recovery mode. Queues are not initialized in this mode, so gt_taskqueue is not initialized, and gtaskqueue_drain() will panic. Fix this by only doing a drain if an RX queue's gt_taskqueue is initialized. Signed-off-by: Eric Joyner <erj@FreeBSD.org> Reviewed by: erj@ MFC after: 1 week Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D37892 (cherry picked from commit 9147969bc277b389a62373c6a5050a2ebfd39071) --- sys/net/iflib.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sys/net/iflib.c b/sys/net/iflib.c index 39072eedc0bb..748970a58f3f 100644 --- a/sys/net/iflib.c +++ b/sys/net/iflib.c @@ -2613,8 +2613,9 @@ iflib_stop(if_ctx_t ctx) bzero((void *)di->idi_vaddr, di->idi_size); } for (i = 0; i < scctx->isc_nrxqsets; i++, rxq++) { - gtaskqueue_drain(rxq->ifr_task.gt_taskqueue, - &rxq->ifr_task.gt_task); + if (rxq->ifr_task.gt_taskqueue != NULL) + gtaskqueue_drain(rxq->ifr_task.gt_taskqueue, + &rxq->ifr_task.gt_task); rxq->ifr_cq_cidx = 0; for (j = 0, di = rxq->ifr_ifdi; j < sctx->isc_nrxqs; j++, di++)
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