| From | Andi Kleen <> | Subject | [PATCH] [90/99] net: filter: Use WARN_RATELIMIT | Date | Wed, 27 Jul 2011 14:49:29 -0700 (PDT) |
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2.6.35-longterm review patch. If anyone has any objections, please let me know.
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From: Joe Perches <joe@perches.com>
[ Upstream commit 6c4a5cb219520c7bc937ee186ca53f03733bd09f ]
A mis-configured filter can spam the logs with lots of stack traces.
Rate-limit the warnings and add printout of the bogus filter information.
Original-patch-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com>
--- net/core/filter.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6.35.y/net/core/filter.c =================================================================== --- linux-2.6.35.y.orig/net/core/filter.c +++ linux-2.6.35.y/net/core/filter.c @@ -292,7 +292,9 @@ load_b: mem[f_k] = X; continue; default: - WARN_ON(1); + WARN_RATELIMIT(1, "Unknown code:%u jt:%u tf:%u k:%u\n", + fentry->code, fentry->jt, + fentry->jf, fentry->k); return 0; }
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