On Thu, Sep 6, 2012 at 8:39 PM, Tony Luck <tony.luck@xxxxxxxxx> 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. - 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 : > [<a0000001001be550>] 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 : > [<a0000001004dc8f1>] 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@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
