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| author | Steven Whitehouse <swhiteho@redhat.com> | 2006-10-02 08:45:08 -0400 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-10-02 08:45:08 -0400 |
| commit | 59458f40e25915a355d8b1d701425fe9f4f9ea23 (patch) | |
| tree | f1c9a2934df686e36d75f759ab7313b6f0e0e5f9 /mm/slab.c | |
| parent | 825f9075d74028d11d7f5932f04e1b5db3022b51 (diff) | |
| parent | d834c16516d1ebec4766fc58c059bf01311e6045 (diff) | |
| download | linux-59458f40e25915a355d8b1d701425fe9f4f9ea23.tar.bz2 | |
Merge branch 'master' into gfs2
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/mm/slab.c b/mm/slab.c index 792bfe320a8b..3dbd6f4e7477 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1683,10 +1683,32 @@ static void poison_obj(struct kmem_cache *cachep, void *addr, unsigned char val) static void dump_line(char *data, int offset, int limit) { int i; + unsigned char error = 0; + int bad_count = 0; + printk(KERN_ERR "%03x:", offset); - for (i = 0; i < limit; i++) + 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"); + + if (bad_count == 1) { + error ^= POISON_FREE; + if (!(error & (error - 1))) { + printk(KERN_ERR "Single bit error detected. Probably " + "bad RAM.\n"); +#ifdef CONFIG_X86 + printk(KERN_ERR "Run memtest86+ or a similar memory " + "test tool.\n"); +#else + printk(KERN_ERR "Run a memory test tool.\n"); +#endif + } + } } #endif |