From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnold Schulz Subject: Raid1 resync problem with leap seconds ? Date: Fri, 06 Jul 2012 14:33:47 +0200 Message-ID: <4FF6DB2B.1090905@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi all, about 8 seconds after inserting the leap second, a running raid1 resync crashed. Not being able to assess if it is the raid code or some kernel timer function to blame, I just present the log here. Regards, Arnold -------------------------------------------- Jul 1 01:03:24 ip4-router kernel: md: data-check of RAID array md2 Jul 1 01:03:24 ip4-router kernel: md: minimum _guaranteed_ speed: 1000 KB/sec/disk. Jul 1 01:03:24 ip4-router kernel: md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for data-check. Jul 1 01:03:24 ip4-router kernel: md: using 128k window, over a total of 1924209408k. Jul 1 01:59:59 ip4-router kernel: Clock: inserting leap second 23:59:60 UTC Jul 1 02:07:12 ip4-router kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 Jul 1 02:07:12 ip4-router kernel: IP: [] sync_request+0x628/0x970 Jul 1 02:07:12 ip4-router kernel: PGD 0 Jul 1 02:07:12 ip4-router kernel: Oops: 0000 [#1] PREEMPT SMP Jul 1 02:07:12 ip4-router kernel: CPU 1 Jul 1 02:07:12 ip4-router kernel: Modules linked in: parport_pc parport binfmt_misc deflate zlib_deflate zlib_inflate ctr twofish_generic twofish_x86_64_3way twofish_x86_64 camellia_generic twofish_common camellia_x86_64 serpent_sse2_x86_64 serpent_generic cryptd lrw blowfish_generic blowfish_x86_64 blowfish_common cast5 des_generic xcbc rmd160 sha512_generic sha256_generic sha1_generic crypto_null af_key fuse mt2060 dvb_usb_dib0700 dib3000mc dib8000 dvb_usb dib0070 dib7000m dib7000p dibx000_common dib0090 dvb_core hfcpci mISDN_core Jul 1 02:07:12 ip4-router kernel: Jul 1 02:07:12 ip4-router kernel: Pid: 17823, comm: md2_resync Not tainted 3.4.4 #109 To Be Filled By O.E.M. To Be Filled By O.E.M./N68PV-GS Jul 1 02:07:12 ip4-router kernel: RIP: 0010:[] [] sync_request+0x628/0x970 Jul 1 02:07:12 ip4-router kernel: RSP: 0018:ffff8800224e9c30 EFLAGS: 00010202 Jul 1 02:07:12 ip4-router kernel: RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000000000001 Jul 1 02:07:12 ip4-router kernel: RDX: 0000000000000002 RSI: ffff88006d7c4d30 RDI: 0000000000000000 Jul 1 02:07:12 ip4-router kernel: RBP: ffff8800224e9ce0 R08: ffff8800224e8000 R09: 0000000000000001 Jul 1 02:07:12 ip4-router kernel: R10: 000000000000013e R11: 0000000000000000 R12: 0000000000000080 Jul 1 02:07:12 ip4-router kernel: R13: ffff88006b403840 R14: ffff88006c711680 R15: ffffea0000ca7580 Jul 1 02:07:12 ip4-router kernel: FS: 00007f441eafa700(0000) GS:ffff88006fd00000(0000) knlGS:0000000000000000 Jul 1 02:07:12 ip4-router kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jul 1 02:07:12 ip4-router kernel: CR2: 0000000000000050 CR3: 000000005c53f000 CR4: 00000000000007e0 Jul 1 02:07:12 ip4-router kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 1 02:07:12 ip4-router kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 1 02:07:12 ip4-router kernel: Process md2_resync (pid: 17823, threadinfo ffff8800224e8000, task ffff88006d7c4d30) Jul 1 02:07:12 ip4-router kernel: Stack: Jul 1 02:07:12 ip4-router kernel: 00000000e5623600 ffff880000000000 0000000029ca6880 0000008029ca5f00 Jul 1 02:07:12 ip4-router kernel: ffff8800224e9e2c 0000000000000000 0000000200000000 0000000029ca6900 Jul 1 02:07:12 ip4-router kernel: 0000000029ca6900 0000000000000080 0000000000001000 ffff88006b68dc00 Jul 1 02:07:12 ip4-router kernel: Call Trace: Jul 1 02:07:12 ip4-router kernel: [] md_do_sync+0x7d3/0xc60 Jul 1 02:07:12 ip4-router kernel: [] ? abort_exclusive_wait+0xb0/0xb0 Jul 1 02:07:12 ip4-router kernel: [] md_thread+0x10e/0x140 Jul 1 02:07:12 ip4-router kernel: [] ? md_register_thread+0x110/0x110 Jul 1 02:07:12 ip4-router kernel: [] kthread+0x8e/0xa0 Jul 1 02:07:12 ip4-router kernel: [] kernel_thread_helper+0x4/0x10 Jul 1 02:07:12 ip4-router kernel: [] ? kthread_worker_fn+0x130/0x130 Jul 1 02:07:12 ip4-router kernel: [] ? gs_change+0xb/0xb Jul 1 02:07:12 ip4-router kernel: Code: 0f 84 35 02 00 00 8b 45 84 41 89 06 41 8b 55 10 48 8b 45 98 8d 0c 12 85 c9 0f 8e 85 fa ff ff 31 db 66 90 48 63 c3 49 8b 7c c6 58 <48> 81 7f 50 10 f4 2f 81 0f 84 b2 01 00 00 8d 04 12 ff c3 39 d8 Jul 1 02:07:12 ip4-router kernel: RIP [] sync_request+0x628/0x970 Jul 1 02:07:12 ip4-router kernel: RSP Jul 1 02:07:12 ip4-router kernel: CR2: 0000000000000050 Jul 1 02:07:12 ip4-router kernel: ---[ end trace 79aec5e8bd378abc ]---