Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753152AbaDQEOG (ORCPT ); Thu, 17 Apr 2014 00:14:06 -0400 Received: from cantor2.suse.de ([195.135.220.15]:57843 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751101AbaDQEOE (ORCPT ); Thu, 17 Apr 2014 00:14:04 -0400 Date: Thu, 17 Apr 2014 14:13:55 +1000 From: NeilBrown To: Fengguang Wu Cc: Shaohua Li , LKML , lkp@01.org Subject: Re: [raid5] kernel BUG at drivers/md/raid5.c:4374! Message-ID: <20140417141355.355e2f3e@notabene.brown> In-Reply-To: <20140417035958.GE8702@localhost> References: <20140417035958.GE8702@localhost> X-Mailer: Claws Mail 3.9.2 (GTK+ 2.24.22; x86_64-suse-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/3_tRFgz0Hh2R2m.b2q4bMD7"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/3_tRFgz0Hh2R2m.b2q4bMD7 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 17 Apr 2014 11:59:59 +0800 Fengguang Wu wrote: > Shaohua, >=20 > We noticed the below BUG on >=20 > commit e240c1839d11152b0355442f8ac6d2d2d921be36 ("raid5: get_active_strip= e avoids device_lock") >=20 > test case: lkp-ws02/micro/dd-write/11HDD-RAID5-cfq-ext4-10dd Thanks. We know about this. I really should push that patch out.... Sorry NeilBrown >=20 > 27c0f68f0745218 e240c1839d11152b0355442f8 =20 > --------------- ------------------------- =20 > 0 +Inf% 1 ~ 0% TOTAL dmesg.kernel_BUG_at_dri= vers/md/raid5.c > 0 +Inf% 1 ~ 0% TOTAL dmesg.invalid_opcode > 0 +Inf% 1 ~ 0% TOTAL dmesg.RIP:handle_active= _stripes > 0 +Inf% 1 ~ 0% TOTAL dmesg.Kernel_panic-not_= syncing:Fatal_exception >=20 > Legend: > ~XX% - stddev percent > [+-]XX% - change percent >=20 > [ 264.260444] kernel BUG at drivers/md/raid5.c:4374! > [ 264.267590] invalid opcode: 0000 [#1] SMP > [ 264.272076] Modules linked in: btrfs microcode ipmi_si ipmi_msghandler= acpi_cpufreq processor > [ 264.281514] CPU: 0 PID: 4005 Comm: md0_raid5 Not tainted 3.15.0-rc1-00= 611-g2e76799 #1 > [ 264.289823] Hardware name: Supermicro X8DTN/X8DTN, BIOS 4.6.3 01/06/20= 10 > [ 264.296789] task: ffff8804151e41a0 ti: ffff88041672c000 task.ti: ffff8= 8041672c000 > [ 264.304750] RIP: 0010:[] [] handl= e_active_stripes.isra.24+0x254/0x360 > [ 264.314951] RSP: 0018:ffff88041672dd10 EFLAGS: 00010002 > [ 264.320527] RAX: ffff88021dc46000 RBX: ffff880220a4e000 RCX: ffff88022= 0a4e080 > [ 264.327926] RDX: 0000000000000001 RSI: ffff88021e0d7010 RDI: ffff88022= 0a4e000 > [ 264.335325] RBP: ffff88041672dda8 R08: 0000000000000000 R09: 000000000= 0000000 > [ 264.342724] R10: 0000000000000000 R11: 000000000000ef58 R12: 000000000= 0000000 > [ 264.350131] R13: ffff880220a4e080 R14: 0000000000000000 R15: ffff88022= 0a4e268 > [ 264.357530] FS: 0000000000000000(0000) GS:ffff880237c00000(0000) knlG= S:0000000000000000 > [ 264.366099] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 264.372111] CR2: 0000000001e21d64 CR3: 000000000200f000 CR4: 000000000= 00007f0 > [ 264.379509] Stack: > [ 264.381780] ffff8804173d7de0 ffff880220a4e000 ffff88041672dd38 ffffff= ffffffffd8 > [ 264.389907] ffffffff1e1bd000 ffff880220a4e090 ffffffff817fdba2 ffff88= 0220a4e000 > [ 264.398043] 0000000000000021 ffff880220a4e268 0000000000000000 ffff88= 041672dd78 > [ 264.406172] Call Trace: > [ 264.408893] [] ? do_release_stripe+0xdf/0x158 > [ 264.415168] [] ? __release_stripe+0x15/0x17 > [ 264.421266] [] raid5d+0x3e2/0x4f2 > [ 264.426497] [] ? schedule_timeout+0x2f/0x19f > [ 264.432681] [] md_thread+0x123/0x139 > [ 264.438171] [] ? __wake_up_sync+0x12/0x12 > [ 264.444096] [] ? md_register_thread+0xd5/0xd5 > [ 264.450368] [] kthread+0xdb/0xe3 > [ 264.455511] [] ? kthread_create_on_node+0x16f/0x16f > [ 264.462310] [] ret_from_fork+0x7c/0xb0 > [ 264.467973] [] ? kthread_create_on_node+0x16f/0x16f > [ 264.474764] Code: 60 00 00 00 00 48 8b 70 10 48 8b 48 18 48 8d 50 10 4= 8 89 4e 08 48 89 31 48 89 50 10 48 89 50 18 f0 ff 40 50 8b 50 50 > ff ca 74 02 <0f> 0b 4a 89 44 d5 98 49 ff c2 49 83 fa 08 0f 85 d7 fd ff ff= 41 > [ 264.498252] RIP [] handle_active_stripes.isra.24+0x= 254/0x360 > [ 264.506112] RSP > [ 264.509869] ---[ end trace 58f3875ff7b4e923 ]--- >=20 > Thanks, > Fengguang --Sig_/3_tRFgz0Hh2R2m.b2q4bMD7 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIVAwUBU09VAznsnt1WYoG5AQLVdw/9G0uSXmqcp0kzRXLXlWHNIDgILkvQ97Ko wyNZmmeq2csBwQYdZ1cQRsLNA+TLwQ1iew/+eloq8pOGrRTczPjrt2RPi2fN5cNL JkEXcyR769JRQoUW1F4yG7H1rw3paagQpIDAwQkbT+u3mEtBSTEvjBrMlsT43i8u C4MMv6ls6WRakWsNRLyoB2UM/7QkFuBxGzZyjxHGCZ7V19ZQCt9CdBmiEEzhlWhi 3qc/DLJLr4pDJ+budKVjDfBZ5DvRvM1oj5vq5SRUbRmskbglu4ZPWum+t2UfjztY lKFk2qKMotkZsobriQaMgMHWYcJc5SVs2n72CvAlH4yxk//JzNUragvDZptTqgbn V9CtFHMxCqkOimxHKuvdczKehimzC+PqfoXCEsoiLoKUfoL3rAcmocbfntxjNQb5 4U1m3tUspeOy/3Lj8lXIgzm8u/pb5G7o+mSOhrYhBFQYzHt9owxJpB4s0NO4gTNE NKTwZF8kYtBzTfUXMv2PvgcnOb0OljoM0bOAjYpJgHSXOUY7Rk4fom/4BEHMEl4X 5ov+NgPeB0CGsBBi+/TeCk2EhSm27xyoSJRw8oh1zMQyFRgB24BqR40qJFSBO5Y/ U3E7QmFofS5dn4rHLhNlPZIclzKyzw21VXwHlY4bGLSR3oUdrhMT2Ha9TX7Xo+bL /Eq/x9UTOKM= =Vywh -----END PGP SIGNATURE----- --Sig_/3_tRFgz0Hh2R2m.b2q4bMD7-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/