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authorEric Dumazet <edumazet@google.com>2019-05-16 08:09:57 -0700
committerDavid S. Miller <davem@davemloft.net>2019-05-16 14:25:58 -0700
commitd7c04b05c9ca14c55309eb139430283a45c4c25f (patch)
tree430f3db330f5830a4ccbfb0747d605b2c9ca43fa /tools/testing/selftests
parentMerge branch 'aqc111-revert-endianess-fixes-and-cleanup-mtu-logic' (diff)
downloadlinux-dev-d7c04b05c9ca14c55309eb139430283a45c4c25f.tar.xz
linux-dev-d7c04b05c9ca14c55309eb139430283a45c4c25f.zip
net: avoid weird emergency message
When host is under high stress, it is very possible thread running netdev_wait_allrefs() returns from msleep(250) 10 seconds late. This leads to these messages in the syslog : [...] unregister_netdevice: waiting for syz_tun to become free. Usage count = 0 If the device refcount is zero, the wait is over. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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