From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from moutng.kundenserver.de ([212.227.17.10]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1S0rd7-0002Kh-07 for linux-mtd@lists.infradead.org; Fri, 24 Feb 2012 09:39:57 +0000 From: "Nigel Hathaway" To: Subject: UBIFS kernel oops Date: Fri, 24 Feb 2012 09:39:42 -0000 Message-ID: <000201ccf2d8$3cb7adb0$b6270910$@node-h.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Language: en-gb List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , We are seeing the following: Oops[#1]: Cpu 0 $ 0 : 00000000 00000001 00000001 87a0cac8 $ 4 : 000000d4 00000000 000000a0 00000000 $ 8 : 000000b0 80103fd8 00000001 805b75e0 $12 : 00000000 8053c370 81000000 00000000 $16 : 87218000 00000000 000000d4 ffffffe4 $20 : 000000a0 00000000 00000001 ffffffff $24 : 00000000 00415b60 $28 : 87a14000 87a15b30 87a15b50 80261170 Hi : 000147e6 Lo : 66678550 epc : 801081ec rt_mutex_lock+0x18/0xa0 Not tainted ra : 80261170 make_reservation+0x9c/0x4b8 Status: 1000ff03 KERNEL EXL IE Cause : 00800008 BadVA : 000000e4 PrId : 59019381 (MIPS 24Kc) Modules linked in: iptable_nat nf_nat_dlna nf_conntrack_dlna nf_nat xt_IMQ iptable_mangle ip_tables xfrm_user xfrm4_tunnel ipcomp xfrm_ipcomp esp4 ah4 gtp nodeh_helper ledtrig_netdev ledtrig_timer ledtrig_default_on ledtrig_heartbeat leds_gpio led_class lm75 percello_mac_filter percello_f8 percello_read_fsm percello_AES fle_driver dpr percello_frame_cap percello_dsp percello_dma percello_mmap percello_logger percello_syscall procfs_util Process pdflush (pid: 124, threadinfo=87a14000, task=87a0cac8, tls=00000000) Stack : 87217b80 00000004 0000005e 87125598 000000a0 801c084c 0000000e 0001b800 0000005e 87218184 8721812c 000000b0 00000000 87a15b64 000000b0 00000001 87218000 870f4380 000000a0 00000000 00000000 8754f600 00000000 00000000 00000001 80261b68 00000000 00000001 805ef6b0 87218038 8109f4a0 802db07c 00026cff 00000000 87218000 80279db8 805ef6b8 00000080 8753e0e0 87218000 ... Call Trace: [<801081ec>] rt_mutex_lock+0x18/0xa0 [<80261170>] make_reservation+0x9c/0x4b8 [<80261b68>] ubifs_jnl_write_inode+0x60/0x248 [<8026952c>] ubifs_write_inode+0xc0/0x10c [<802653c0>] ubifs_writepage+0x220/0x250 [<8019671c>] __writepage+0x18/0x80 [<801974b8>] write_cache_pages+0x258/0x4d4 [<801977d0>] do_writepages+0x78/0x80 [<801e9700>] writeback_single_inode+0xa0/0x428 [<801ea1b8>] generic_sync_sb_inodes+0x4a0/0x65c [<801ea4a0>] writeback_inodes+0x7c/0x130 [<80197fb8>] background_writeout+0xd0/0x140 [<80198c70>] pdflush+0x158/0x28c [<8014afc8>] kthread+0x84/0x8c [<8010c72c>] kernel_thread_helper+0x10/0x18 Code: 7c420400 1040000c 00000000 14400005 00000000 00600821 e0810010 102000b0 Disabling lock debugging due to kernel taint The kernel version is 3.6.31.12 with real-time extensions (patches) compiled with "mips-linux-gnu-gcc (Sourcery G++ Lite 4.4-303) 4.4.1" We have seen this posted before here: http://lists.infradead.org/pipermail/linux-mtd/2011-December/038852.html For us, UBIFS is not read-only. Any ideas what could be causing this and/or whether such an issue has been fixed in later kernels?