From fdde6abb3e8dd45e4b026fcf32d40aed96ce3944 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Fri, 29 Jul 2011 18:22:13 +0200 Subject: slab: use print_hex_dump Less code and the advantage of ascii dump. before: | Slab corruption: names_cache start=c5788000, len=4096 | 000: 6b 6b 01 00 00 00 56 00 00 00 24 00 00 00 2a 00 | 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ff | 030: ff ff ff ff e2 b4 17 18 c7 e4 08 06 00 01 08 00 | 040: 06 04 00 01 e2 b4 17 18 c7 e4 0a 00 00 01 00 00 | 050: 00 00 00 00 0a 00 00 02 6b 6b 6b 6b 6b 6b 6b 6b after: | Slab corruption: size-4096 start=c38a9000, len=4096 | 000: 6b 6b 01 00 00 00 56 00 00 00 24 00 00 00 2a 00 kk....V...$...*. | 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ | 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ff ................ | 030: ff ff ff ff d2 56 5f aa db 9c 08 06 00 01 08 00 .....V_......... | 040: 06 04 00 01 d2 56 5f aa db 9c 0a 00 00 01 00 00 .....V_......... | 050: 00 00 00 00 0a 00 00 02 6b 6b 6b 6b 6b 6b 6b 6b ........kkkkkkkk Acked-by: Christoph Lameter Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Pekka Enberg --- mm/slab.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'mm') diff --git a/mm/slab.c b/mm/slab.c index 1e523ed47c61..41fc5781c7cc 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1811,15 +1811,15 @@ static void dump_line(char *data, int offset, int limit) unsigned char error = 0; int bad_count = 0; - printk(KERN_ERR "%03x:", offset); + printk(KERN_ERR "%03x: ", offset); for (i = 0; i < limit; i++) { if (data[offset + i] != POISON_FREE) { error = data[offset + i]; bad_count++; } - printk(" %02x", (unsigned char)data[offset + i]); } - printk("\n"); + print_hex_dump(KERN_CONT, "", 0, 16, 1, + &data[offset], limit, 1); if (bad_count == 1) { error ^= POISON_FREE; @@ -2989,14 +2989,9 @@ bad: printk(KERN_ERR "slab: Internal list corruption detected in " "cache '%s'(%d), slabp %p(%d). Hexdump:\n", cachep->name, cachep->num, slabp, slabp->inuse); - for (i = 0; - i < sizeof(*slabp) + cachep->num * sizeof(kmem_bufctl_t); - i++) { - if (i % 16 == 0) - printk("\n%03x:", i); - printk(" %02x", ((unsigned char *)slabp)[i]); - } - printk("\n"); + print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, slabp, + sizeof(*slabp) + cachep->num * sizeof(kmem_bufctl_t), + 1); BUG(); } } -- cgit v1.2.3