From 233c96fc077d310772375d47522fb444ff546905 Mon Sep 17 00:00:00 2001
From: Miroslav Urbanek <mu@miroslavurbanek.com>
Date: Thu, 5 Feb 2015 16:36:50 +0100
Subject: 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>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/core/flow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'net/core/flow.c')
diff --git a/net/core/flow.c b/net/core/flow.c
index a0348fde1fdf..1033725be40b 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);
--
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