Date: Mon, 3 Feb 2020 10:45:09 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r357427 - stable/12/sys/ofed/drivers/infiniband/ulp/ipoib Message-ID: <202002031045.013AjAJA047508@repo.freebsd.org>
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Author: hselasky Date: Mon Feb 3 10:45:09 2020 New Revision: 357427 URL: https://svnweb.freebsd.org/changeset/base/357427 Log: MFC r356633: 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> Sponsored by: Mellanox Technologies Modified: stable/12/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c ============================================================================== --- stable/12/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c Mon Feb 3 05:38:45 2020 (r357426) +++ stable/12/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_cm.c Mon Feb 3 10:45:09 2020 (r357427) @@ -1265,6 +1265,8 @@ 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) @@ -1290,6 +1292,8 @@ 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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