https://bugzilla.kernel.org/show_bug.cgi?id=90601
--- Comment #18 from mer...@liao.homelinux.org --- Created attachment 174171 --> https://bugzilla.kernel.org/attachment.cgi?id=174171&action=edit dmesg I finally managed to get a dmesg output with the crashing kernel. Especially this part might indicate the root of the problem? [Thu Apr 16 13:02:10 2015] ------------[ cut here ]------------ [Thu Apr 16 13:02:10 2015] WARNING: CPU: 6 PID: 1736 at lib/dma-debug.c:601 debug_dma_assert_idle+0x17c/0x1e0() [Thu Apr 16 13:02:10 2015] 3w-sas 0000:03:00.0: DMA-API: cpu touching an active dma mapped cacheline [cln=0x0000000101ff8e00] [Thu Apr 16 13:02:10 2015] Modules linked in: [Thu Apr 16 13:02:10 2015] CPU: 6 PID: 1736 Comm: mount Not tainted 4.0.0-gentoo #1 [Thu Apr 16 13:02:11 2015] Hardware name: Supermicro X9DR7/E-(J)LN4F/X9DR7/E-(J)LN4F, BIOS 3.0a 09/10/2013 [Thu Apr 16 13:02:11 2015] ffffffff8170e0f5 ffff88406050fcb8 ffffffff814c8778 000000000000009a [Thu Apr 16 13:02:11 2015] ffff88406050fd08 ffff88406050fcf8 ffffffff8107c250 ffff884060422e08 [Thu Apr 16 13:02:11 2015] ffff8840647fe5e0 0000000000000206 ffffea00e1bf9ce8 ffff884060422e08 [Thu Apr 16 13:02:11 2015] Call Trace: [Thu Apr 16 13:02:11 2015] [<ffffffff814c8778>] dump_stack+0x45/0x57 [Thu Apr 16 13:02:11 2015] [<ffffffff8107c250>] warn_slowpath_common+0x80/0xc0 [Thu Apr 16 13:02:11 2015] [<ffffffff8107c2d1>] warn_slowpath_fmt+0x41/0x50 [Thu Apr 16 13:02:11 2015] [<ffffffff812b9dfc>] debug_dma_assert_idle+0x17c/0x1e0 [Thu Apr 16 13:02:11 2015] [<ffffffff81114814>] do_wp_page+0xc4/0x810 [Thu Apr 16 13:02:11 2015] [<ffffffff8111744c>] handle_mm_fault+0xb3c/0x10f0 [Thu Apr 16 13:02:11 2015] [<ffffffff8111ca6d>] ? do_mmap_pgoff+0x34d/0x400 [Thu Apr 16 13:02:11 2015] [<ffffffff81070ec6>] __do_page_fault+0x146/0x390 [Thu Apr 16 13:02:11 2015] [<ffffffff8107114c>] do_page_fault+0xc/0x10 [Thu Apr 16 13:02:11 2015] [<ffffffff814cf252>] page_fault+0x22/0x30 [Thu Apr 16 13:02:11 2015] ---[ end trace 326b0530baa65706 ]--- I was still able to login with root after that and reproduce the crash with another backtrace. See the next attachment. -- You are receiving this mail because: You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
