On Sun, Apr 29, 2012 at 09:44:44AM -0700, Hugh Dickins wrote: > On Sun, 29 Apr 2012, Jens Gustedt wrote: > > Hi, > > it looks that there is a regression in 3.3.4 compared to 3.3.3. > > > > After migrating I have the BUG as copied below. > > > > If somebody thinks that this would make sense, I could try to bisect this. > > > > Jens > > > > [ 9.723430] BUG: unable to handle kernel NULL pointer dereference at > > 0000000000000012 > > [ 9.723478] IP: [<ffffffff812efa66>] strstr+0x26/0x80 > > [ 9.723485] PGD 11623f067 PUD 1154ad067 PMD 0 > > [ 9.723489] Oops: 0000 [#1] SMP > > [ 9.723491] CPU 0 > > [ 9.723492] Modules linked in: dell_laptop(+) fscache snd cfg80211 > > dcdbas v4l2_compat_ioctl32 auth_rpcgss videobuf2_vmalloc > > videobuf2_memops nfs_acl soundcore sunrpc psmouse snd_page_alloc > > serio_raw lm75 coretemp i915 ahci libahci drm_kms_helper drm sdhci_pci > > sdhci e1000e i2c_algo_bit video > > [ 9.723505] > > [ 9.723508] Pid: 567, comm: modprobe Not tainted 3.3.4 #6 Dell Inc. > > Latitude E6320/0GJF11 > > [ 9.723511] RIP: 0010:[<ffffffff812efa66>] [<ffffffff812efa66>] > > strstr+0x26/0x80 > > [ 9.723515] RSP: 0018:ffff88011e655e60 EFLAGS: 00010206 > > [ 9.723516] RAX: 0000000000000012 RBX: ffffffffa0215e58 RCX: > > 0000000000000012 > > [ 9.723518] RDX: ffffffffa0215e7a RSI: ffffffffa0215e69 RDI: > > 0000000000000012 > > [ 9.723520] RBP: ffff88011e655e68 R08: 0000000000000011 R09: > > 000000000000000a > > [ 9.723522] R10: ffff880000000000 R11: 0000000000000000 R12: > > 0000000000000000 > > [ 9.723524] R13: ffffffffa0215e58 R14: 0000000000000000 R15: > > 0000000000404f2f > > [ 9.723526] FS: 00007f9b94a04720(0000) GS:ffff88012dc00000(0000) > > knlGS:0000000000000000 > > [ 9.723528] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > [ 9.723530] CR2: 0000000000000012 CR3: 0000000114958000 CR4: > > 00000000000406f0 > > [ 9.723532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > > 0000000000000000 > > [ 9.723534] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > > 0000000000000400 > > [ 9.723536] Process modprobe (pid: 567, threadinfo ffff88011e654000, > > task ffff880114d4db40) > > [ 9.723538] Stack: > > [ 9.723539] ffffffffa0215e58 ffff88011e655e98 ffffffff814a25fd > > ffff88011e655f10 > > [ 9.723542] ffffffffa0215e58 0000000000000000 ffffffffa022c09e > > ffff88011e655eb8 > > [ 9.723544] ffffffff814a26f8 00000000ffffffed 0000000000000000 > > ffff88011e655f18 > > [ 9.723547] Call Trace: > > [ 9.723553] [<ffffffff814a25fd>] dmi_matches+0x5d/0xd0 > > [ 9.723557] [<ffffffffa022c09e>] ? find_tokens+0x9e/0x9e [dell_laptop] > > [ 9.723560] [<ffffffff814a26f8>] dmi_check_system+0x28/0x60 > > [ 9.723564] [<ffffffffa022c0db>] dell_init+0x3d/0xf62 [dell_laptop] > > [ 9.723567] [<ffffffff8103f1e3>] ? set_memory_nx+0x43/0x50 > > [ 9.723571] [<ffffffffa022c09e>] ? find_tokens+0x9e/0x9e [dell_laptop] > > [ 9.723575] [<ffffffff81002162>] do_one_initcall+0x42/0x180 > > [ 9.723579] [<ffffffff810a5fe4>] sys_init_module+0xd4/0x230 > > [ 9.723583] [<ffffffff815c5c29>] system_call_fastpath+0x16/0x1b > > [ 9.723585] Code: 00 00 00 00 00 55 48 89 f8 48 89 e5 80 3e 00 53 74 > > 13 48 89 f2 48 ff c2 80 3a 00 75 f8 49 89 d0 49 29 f0 75 03 5b c9 c3 48 > > 89 c1 <80> 38 00 74 0d 0f 1f 44 00 00 48 ff c1 80 39 00 75 f8 49 89 c9 > > [ 9.723606] RIP [<ffffffff812efa66>] strstr+0x26/0x80 > > [ 9.723609] RSP <ffff88011e655e60> > > [ 9.723610] CR2: 0000000000000012 > > [ 9.779392] Linux video capture interface: v2.00 > > [ 9.779974] ---[ end trace 5ac2b643564e817f ]--- > > Thanks for warning us: not my area, but I bet you'll find it fixed > by this later upstream commit, which had better be added to -stable. > > Hugh > > commit d62d421b071b08249361044d8e56c8b5c3ed6aa7
Now queued up, thanks everyone for finding this so quickly. greg k-h -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
