On 06/23, Dave Jones wrote: > > On Sun, Jun 23, 2013 at 06:04:52PM +0200, Oleg Nesterov wrote: > > > Could you please do the following: > > > > 1. # cd /sys/kernel/debug/tracing > > # echo 0 >> options/function-trace > > # echo preemptirqsoff >> current_tracer > > dammit. > > WARNING: at include/linux/list.h:385 > rb_head_page_deactivate.isra.39+0x61/0x80()
Hmmm. which kernel do use use? 380 #define list_for_each(pos, head) \ 381 for (pos = (head)->next; pos != (head); pos = pos->next) 382 383 /** 384 * __list_for_each - iterate over a list 385 * @pos: the &struct list_head to use as a loop cursor. 386 * @head: the head for your list. 387 * 388 * This variant doesn't differ from list_for_each() any more. 389 * We don't do prefetching in either case. 390 */ 391 #define __list_for_each(pos, head) \ 392 for (pos = (head)->next; pos != (head); pos = pos->next) 393 394 /** 395 * list_for_each_prev - iterate over a list backwards 396 * @pos: the &struct list_head to use as a loop cursor. 397 * @head: the head for your list. 398 */ 399 #define list_for_each_prev(pos, head) \ 400 for (pos = (head)->prev; pos != (head); pos = pos->prev) On 9e895ace5d8 (Linux 3.10-rc7). > check_list_nodes corruption. next->prev should be prev (ffff88023b8a1a08), > but was 00ffff88023b8a1a. (next=ffff880243288001). Can't find "check_list_nodes" in lib/list_debug.c or elsewhere... > [<ffffffff816e467d>] dump_stack+0x19/0x1b > [<ffffffff8104a0c1>] warn_slowpath_common+0x61/0x80 > [<ffffffff8104a12c>] warn_slowpath_fmt+0x4c/0x50 > [<ffffffff81112c61>] rb_head_page_deactivate.isra.39+0x61/0x80 How? rb_list_head_clear() just modifies list->next directly. > hopefully despite that it'll actually function as intended. Yes ;) Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
