From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754042AbbCMJkx (ORCPT ); Fri, 13 Mar 2015 05:40:53 -0400 Received: from bh-25.webhostbox.net ([208.91.199.152]:38227 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753883AbbCMJkL (ORCPT ); Fri, 13 Mar 2015 05:40:11 -0400 Message-ID: <5502B072.4080108@roeck-us.net> Date: Fri, 13 Mar 2015 02:40:02 -0700 From: Guenter Roeck User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: "linux-next@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Mike Snitzer , Ming Lei Subject: arm64 crash in today's next due to 'blk-mq: fix use of incorrect goto label in blk_mq_init_queue error path' Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated_sender: linux@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-CTCH-PVer: 0000001 X-CTCH-Spam: Unknown X-CTCH-VOD: Unknown X-CTCH-Flags: 0 X-CTCH-RefID: str=0001.0A020202.5502B07B.0082,ss=1,re=0.001,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-CTCH-Score: 0.001 X-CTCH-ScoreCust: 0.000 X-CTCH-Rules: C_4847, X-CTCH-SenderID: linux@roeck-us.net X-CTCH-SenderID-Flags: 0 X-CTCH-SenderID-TotalMessages: 3 X-CTCH-SenderID-TotalSpam: 0 X-CTCH-SenderID-TotalSuspected: 0 X-CTCH-SenderID-TotalConfirmed: 0 X-CTCH-SenderID-TotalBulk: 0 X-CTCH-SenderID-TotalVirus: 0 X-CTCH-SenderID-TotalRecipients: 0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: mailgid no entry from get_relayhosts_entry X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I see an arm64 crash in today's -next. [] blk_mq_freeze_queue_start+0x38/0x54 [] blk_mq_update_tag_set_depth+0x2c/0xb8 [] blk_mq_init_allocated_queue+0x6e4/0x71c [] blk_mq_init_queue+0x2c/0x6c [] loop_add+0xc0/0x24c [] loop_init+0x134/0x190 [] do_one_initcall+0x88/0x1a8 [] kernel_init_freeable+0x140/0x1e8 [] kernel_init+0xc/0xdc See http://server.roeck-us.net:8010/builders/qemu-arm64-next/builds/132/steps/qemubuildcommand/logs/stdio for a complete log. Bisect results: # bad: [4516740d361710d8a554749c63a75b410edd2fdc] fs: btrfs: Add missing include file # good: [9eccca0843205f87c00404b663188b88eb248051] Linux 4.0-rc3 git bisect start 'HEAD' 'v4.0-rc3' # good: [07534ed768c6b5d4ffa048e643597e7d0690b572] Merge remote-tracking branch 'sound/for-next' git bisect good 07534ed768c6b5d4ffa048e643597e7d0690b572 # bad: [b27544a5a14c901833f254f8bd17bdc132a7a765] Merge remote-tracking branch 'tty/tty-next' git bisect bad b27544a5a14c901833f254f8bd17bdc132a7a765 # bad: [a16a3cc1cb1e956e294b5e36d1f9e082406676a5] Merge remote-tracking branch 'spi/for-next' git bisect bad a16a3cc1cb1e956e294b5e36d1f9e082406676a5 # bad: [c4b2457b90df42abe46e463d5da149c9a4515262] Merge remote-tracking branch 'md/for-next' git bisect bad c4b2457b90df42abe46e463d5da149c9a4515262 # good: [c96db850880a5f76d727725607ab82c4733d1c60] Merge remote-tracking branch 'input/next' git bisect good c96db850880a5f76d727725607ab82c4733d1c60 # bad: [b083904c28374ec4d1f4bbeafb7faa68985e289f] Merge remote-tracking branch 'device-mapper/for-next' git bisect bad b083904c28374ec4d1f4bbeafb7faa68985e289f # good: [c7b1fb7cfa638bdcb9ff71a55ce0a9b8554bf927] Merge branch 'for-3.20/core' into for-next git bisect good c7b1fb7cfa638bdcb9ff71a55ce0a9b8554bf927 # good: [40852b59c07610139755a707fde327c4b33b8b26] dm: remove request-based logic from make_request_fn wrapper git bisect good 40852b59c07610139755a707fde327c4b33b8b26 # bad: [716452cd27b145d611e4399e7cc35df6c943686e] blk-mq: add blk_mq_init_allocated_queue and export blk_mq_register_disk git bisect bad 716452cd27b145d611e4399e7cc35df6c943686e # good: [8124ec8334d7ffa0ca496a52c7351b9ed610fa03] dm: don't start current request if it would've merged with the previous git bisect good 8124ec8334d7ffa0ca496a52c7351b9ed610fa03 # good: [5013e29ef8a49fd276150f566880766938dc0e20] dm: impose configurable deadline for dm_request_fn's merge heuristic git bisect good 5013e29ef8a49fd276150f566880766938dc0e20 # bad: [c9e8c91f8a279b87eb0d94b037504ea9fc1bef7c] blk-mq: fix use of incorrect goto label in blk_mq_init_queue error path git bisect bad c9e8c91f8a279b87eb0d94b037504ea9fc1bef7c # first bad commit: [c9e8c91f8a279b87eb0d94b037504ea9fc1bef7c] blk-mq: fix use of incorrect goto label in blk_mq_init_queue error path Looking into the patch, this is not surprising, since 'q' is now used before it is allocated. Guenter