Date: Sat, 11 Jan 2020 12:02:16 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r356633 - head/sys/ofed/drivers/infiniband/ulp/ipoib Message-ID: <202001111202.00BC2GZH096212@repo.freebsd.org>
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Author: hselasky Date: Sat Jan 11 12:02:16 2020 New Revision: 356633 URL: https://svnweb.freebsd.org/changeset/base/356633 Log: Make sure the VNET is properly set when reaping mbufs in ipoib. Else the following panic may happen: panic() icmp_error() ipoib_cm_mb_reap() linux_work_fn() taskqueue_run_locked() taskqueue_thread_loop() fork_exit() fork_trampoline() Submitted by: Andreas Kempe <kempe@lysator.liu.se> MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c Modified: head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c ============================================================================== --- head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c Sat Jan 11 11:38:02 2020 (r356632) +++ head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c Sat Jan 11 12:02:16 2020 (r356633) @@ -1268,6 +1268,8 @@ static void ipoib_cm_mb_reap(struct work_struct *work) spin_lock_irqsave(&priv->lock, flags); + CURVNET_SET_QUIET(priv->dev->if_vnet); + for (;;) { IF_DEQUEUE(&priv->cm.mb_queue, mb); if (mb == NULL) @@ -1293,6 +1295,8 @@ static void ipoib_cm_mb_reap(struct work_struct *work) spin_lock_irqsave(&priv->lock, flags); } + + CURVNET_RESTORE(); spin_unlock_irqrestore(&priv->lock, flags); }
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