> Can you try the patch below ? Testing now... (I presume you noticed the one-character typo in my earlier patch. That should be "mc = mc->next", not "mv = mc->next".)
That doesn't seem to do it. Not entirely, at least. After downloading and partially re-uploading an 800M file, slabtop reports: OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 341576 341574 99% 0.50K 42697 8 170788K kmalloc-512 342006 341953 99% 0.19K 16286 21 65144K kmalloc-192 30592 30575 99% 2.00K 7648 4 61184K kmalloc-2048 30213 30193 99% 0.44K 3357 9 13428K skbuff_fclone_cache 7650 7643 99% 0.08K 150 51 600K sysfs_dir_cache 4000 3938 98% 0.12K 125 32 500K kmalloc-128 258 258 100% 1.15K 43 6 344K raid5-md5 232 221 95% 1.00K 58 4 232K kmalloc-1024 3136 3110 99% 0.06K 49 64 196K kmalloc-64 264 80 30% 0.68K 24 11 192K ext3_inode_cache The "kmalloc-2048" was down in the noise before the upload started. This is in single-user mode, after sync and echo 3 > /proc/sys/vm/drop_caches. I'll have to try this after this evening's social plans, but I'm thinking of implementing more rapid bug detection: explicitly zero the sp->TxBuff slot when the skb is freed, and check that it is zero before putting anything else in there. (And likewise for RxBuff.) That way, I don't have to use up a noticeable amount of memory to see the bug and reboot to clear up the damage each test cycle. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html