Messages in this thread Patch in this message | | | Date | Thu, 5 Feb 2015 16:36:50 +0100 | From | Miroslav Urbanek <> | Subject | [PATCH] flowcache: Fix kernel panic in flow_cache_flush_task |
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flow_cache_flush_task references a structure member flow_cache_gc_work where it should reference flow_cache_flush_task instead.
Kernel panic occurs on kernels using IPsec during XFRM garbage collection. The garbage collection interval can be shortened using the following sysctl settings:
net.ipv4.xfrm4_gc_thresh=4 net.ipv6.xfrm6_gc_thresh=4
With the default settings, our productions servers crash approximately once a week. With the settings above, they crash immediately.
Fixes: ca925cf1534e ("flowcache: Make flow cache name space aware") Reported-by: Tomáš Charvát <tc@excello.cz> Tested-by: Jan Hejl <jh@excello.cz> Signed-off-by: Miroslav Urbanek <mu@miroslavurbanek.com> --- net/core/flow.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/flow.c b/net/core/flow.c index a0348fd..1033725 100644 --- a/net/core/flow.c +++ b/net/core/flow.c @@ -379,7 +379,7 @@ done: static void flow_cache_flush_task(struct work_struct *work) { struct netns_xfrm *xfrm = container_of(work, struct netns_xfrm, - flow_cache_gc_work); + flow_cache_flush_work); struct net *net = container_of(xfrm, struct net, xfrm); flow_cache_flush(net); -- 2.0.4
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