From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sedat Dilek Subject: Re: ia64 dies in slab code on next-20120906 Date: Thu, 6 Sep 2012 22:13:24 +0200 Message-ID: References:

Reply-To: sedat.dilek@gmail.com Mime-Version: 1.0 Content-Type: multipart/mixed; boundary=f46d04016c23a36c8704c90e1fee Return-path: Received: from mail-lpp01m010-f46.google.com ([209.85.215.46]:41112 "EHLO mail-lpp01m010-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757870Ab2IFUN0 (ORCPT ); Thu, 6 Sep 2012 16:13:26 -0400 Received: by lagy9 with SMTP id y9so1381021lag.19 for ; Thu, 06 Sep 2012 13:13:24 -0700 (PDT) In-Reply-To: Sender: linux-next-owner@vger.kernel.org List-ID: To: Tony Luck Cc: linux-next@vger.kernel.org, Christoph Lameter , Pekka Enberg --f46d04016c23a36c8704c90e1fee Content-Type: text/plain; charset=UTF-8 On Thu, Sep 6, 2012 at 9:39 PM, Sedat Dilek wrote: > On Thu, Sep 6, 2012 at 8:39 PM, Tony Luck wrote: >> Worked fine yesterday on next-20120905, crashes today. First sign of trouble >> was an unaligned access, then a NULL dereference. SL*B related bits of >> my config: >> >> CONFIG_SLUB_DEBUG=y >> # CONFIG_SLAB is not set >> CONFIG_SLUB=y >> CONFIG_SLABINFO=y >> # CONFIG_SLUB_DEBUG_ON is not set >> # CONFIG_SLUB_STATS is not set >> > > I fell over the same issue, comparing the diff between next-20120905 > and next-20120906 shows the culprit lies in the > "slab/common-for-cgroups" GIT branch. > That stuff was in "slab/next" and came to today's linux-next, but now removed. > > I try with reverting all commits came with "slab/common-for-cgroups" > in next-20120906. > Confirmed, with the attached patch (with 15 reverted commits from "slab/common-for-cgroups") I can boot my Ubuntu/precise AMD64 machine, again. > - Sedat - > > [1] http://git.kernel.org/?p=linux/kernel/git/penberg/linux.git;a=shortlog;h=refs/heads/slab/common-for-cgroups > [2] http://git.kernel.org/?p=linux/kernel/git/penberg/linux.git;a=shortlog;h=refs/heads/slab/next > >> And he console log. >> >> PID hash table entries: 4096 (order: 1, 32768 bytes) >> Dentry cache hash table entries: 262144 (order: 7, 2097152 bytes) >> Inode-cache hash table entries: 131072 (order: 6, 1048576 bytes) >> Memory: 2047920k/2086064k available (13992k code, 38144k reserved, >> 6012k data, 880k init) >> kernel unaligned access to 0xca2ffc55fb373e95, ip=0xa0000001001be550 >> swapper[0]: error during unaligned kernel access >> -1 [1] >> Modules linked in: >> >> Pid: 0, CPU 0, comm: swapper >> psr : 00001010084a2018 ifs : 800000000000060f ip : >> [] Not tainted (3.6.0-rc4-zx1-smp-next-20120906) >> ip is at new_slab+0x90/0x680 >> unat: 0000000000000000 pfs : 000000000000060f rsc : 0000000000000003 >> rnat: 9666960159966a59 bsps: a0000001001441c0 pr : 9666960159965a59 >> ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70433f >> csd : 0000000000000000 ssd : 0000000000000000 >> b0 : a0000001001be500 b6 : a00000010112cb20 b7 : a0000001011660a0 >> f6 : 0fff7f0f0f0f0e54f0000 f7 : 0ffe8c5c1000000000000 >> f8 : 1000d8000000000000000 f9 : 100068800000000000000 >> f10 : 10005f0f0f0f0e54f0000 f11 : 1003e0000000000000078 >> r1 : a00000010155eef0 r2 : 0000000000000000 r3 : fffffffffffc1638 >> r8 : e0000040600081b8 r9 : ca2ffc55fb373e95 r10 : 0000000000000000 >> r11 : e000004040001646 r12 : a000000101287e20 r13 : a000000101280000 >> r14 : 0000000000004000 r15 : 0000000000000078 r16 : ca2ffc55fb373e75 >> r17 : e000004040040000 r18 : fffffffffffc1646 r19 : e000004040001646 >> r20 : fffffffffffc15f8 r21 : 000000000000004d r22 : a00000010132fa68 >> r23 : 00000000000000ed r24 : 0000000000000000 r25 : 0000000000000000 >> r26 : 0000000000000001 r27 : a0000001012b8500 r28 : a00000010135f4a0 >> r29 : 0000000000000000 r30 : 0000000000000000 r31 : 0000000000000001 >> Unable to handle kernel NULL pointer dereference (address 0000000000000018) >> swapper[0]: Oops 11003706212352 [2] >> Modules linked in: >> >> Pid: 0, CPU 0, comm: swapper >> psr : 0000121008022018 ifs : 800000000000cc18 ip : >> [] Not tainted (3.6.0-rc4-zx1-smp-next-20120906) >> ip is at __copy_user+0x891/0x960 >> unat: 0000000000000000 pfs : 0000000000000813 rsc : 0000000000000003 >> rnat: 0000000000000000 bsps: 0000000000000000 pr : 9666960159961765 >> ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c0270033f >> csd : 0000000000000000 ssd : 0000000000000000 >> b0 : a00000010004b550 b6 : a00000010004b740 b7 : a00000010000c750 >> f6 : 000000000000000000000 f7 : 1003e9e3779b97f4a7c16 >> f8 : 1003e0a00000010001550 f9 : 100068800000000000000 >> f10 : 10005f0f0f0f0e54f0000 f11 : 1003e0000000000000078 >> r1 : a00000010155eef0 r2 : a0000001012870b0 r3 : a0000001012870b8 >> r8 : 0000000000000298 r9 : 0000000000000013 r10 : 0000000000000000 >> r11 : 9666960159961a65 r12 : a000000101287010 r13 : a000000101280000 >> r14 : a000000101287068 r15 : a000000101287080 r16 : 0000000000000298 >> r17 : 0000000000000010 r18 : 0000000000000018 r19 : a000000101287310 >> r20 : 0000000000000290 r21 : 0000000000000000 r22 : 0000000000000000 >> r23 : a000000101386f58 r24 : 0000000000000000 r25 : 000000007fffffff >> r26 : a000000101287078 r27 : a0000001013c69b0 r28 : 0000000000000000 >> r29 : 0000000000000014 r30 : 0000000000000000 r31 : 0000000000000813 >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-next" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html --f46d04016c23a36c8704c90e1fee Content-Type: application/octet-stream; name="3.6.0-rc4-next20120906-2-iniza-generic.patch" Content-Disposition: attachment; filename="3.6.0-rc4-next20120906-2-iniza-generic.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_h6sammj30 U2VkYXQgRGlsZWsgKDIxKToKICAgICAga2J1aWxkLCBkZWItcGtnOiBUcnkgdG8gZGV0ZXJtaW5l IGRpc3RyaWJ1dGlvbgogICAgICBrYnVpbGQsIGRlYi1wa2c6IEJ1bXAgeWVhciBpbiBkZWJpYW4v Y29weXJpZ2h0IGZpbGUKICAgICAga2J1aWxkLCBkZWItcGtnOiBVcGRhdGUgZ2l0IHJlcG9zaXRv 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