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Date: Tue, 22 Apr 2008 23:46:04 +0200 From: "Rafael J. Wysocki" <rjw@...k.pl> To: "Zdenek Kabelac" <zdenek.kabelac@...il.com> Cc: "Ingo Molnar" <mingo@...e.hu>, "Jiri Slaby" <jirislaby@...il.com>, "Linus Torvalds" <torvalds@...ux-foundation.org>, paulmck@...ux.vnet.ibm.com, "David Miller" <davem@...emloft.net>, linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, linux-ext4@...r.kernel.org, herbert@...dor.apana.org.au Subject: Re: 2.6.25-git2: BUG: unable to handle kernel paging request at ffffffffffffffff On Tuesday, 22 of April 2008, Zdenek Kabelac wrote: > 2008/4/22, Ingo Molnar <mingo@...e.hu>: > > > > * Jiri Slaby <jirislaby@...il.com> wrote: > > > > >> What do you do to trigger this? Any particular load? Is it still just > > >> doing suspend/resume, or do you have something else that you are > > >> playing with? > > > > > > Yesterday I did 2 suspend/resumes after 1 hour of uptime and ran > > > git-status for a fraction of a second until it was killed. So I can > > > perfectly reproduce it when I suspend, resume and produce some io > > > load. I guess it's time to bisect 2.6.25-rc8-mm2 as I'm able to > > > reproduce it the best and haven't seen that bug in -rc8-mm1 for over > > > week of suspending and working. > > > > > > the most dangerous x86 change we added was the PAT stuff. Does it > > influence the crashes in any way if you boot with 'nopat' or if you > > disable CONFIG_X86_PAT=y into the .config? > > > > the other area was the DMA ops change - that should be rather trivial on > > 64-bit though. > > > Unsure how it is related to my orginal Oops post - but now when I've > debug pagealloc enabled this appeared in my log after resume - should > I open new bug for this - or could this be part of the problem I've > experienced later? > > (Note - now I'm running commit: 8a81f2738f10ca817c975cec893aa58497e873b2 > > sd 0:0:0:0: [sda] Starting disk > mmc0: new SD card at address 5a61 > mmc mmc0:5a61: parent mmc0 is sleeping, will not add > ------------[ cut here ]------------ > WARNING: at drivers/base/power/main.c:78 device_pm_add+0x6c/0xf0() > Modules linked in: tda18271 nls_iso8859_2 nls_cp852 vfat fat i915 drm > ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 xt_state > nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables > bridge llc nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 sunrpc > binfmt_misc dm_mirror dm_log dm_multipath dm_mod uinput kvm_intel kvm > snd_hda_intel snd_seq_oss snd_seq_midi_event snd_seq arc4 > snd_seq_device snd_pcm_oss ecb crypto_blkcipher cryptomgr > crypto_algapi iwl3945 snd_mixer_oss mac80211 snd_pcm mmc_block video > sdhci thinkpad_acpi mmc_core i2c_i801 snd_timer rtc_cmos rtc_core > backlight iTCO_wdt cfg80211 evdev snd i2c_core e1000e psmouse > soundcore snd_page_alloc nvram intel_agp rtc_lib iTCO_vendor_support > output serio_raw ac battery button uhci_hcd ohci_hcd ehci_hcd usbcore > [last unloaded: microcode] > Pid: 1240, comm: kmmcd Not tainted 2.6.25 #57 > > Call Trace: > [warn_on_slowpath+95/144] warn_on_slowpath+0x5f/0x90 > [device_pm_add+24/240] ? device_pm_add+0x18/0xf0 > [device_pm_add+108/240] device_pm_add+0x6c/0xf0 > [device_add+1092/1376] device_add+0x444/0x560 > [_end+510110570/2109230024] :mmc_core:mmc_add_card+0xa2/0x140 > [_end+510117927/2109230024] :mmc_core:mmc_attach_sd+0x17f/0x860 > [_end+510109176/2109230024] ? :mmc_core:mmc_rescan+0x0/0x1c0 > [_end+510109545/2109230024] :mmc_core:mmc_rescan+0x171/0x1c0 > [run_workqueue+246/560] run_workqueue+0xf6/0x230 > [worker_thread+167/288] worker_thread+0xa7/0x120 > [autoremove_wake_function+0/64] ? autoremove_wake_function+0x0/0x40 > [worker_thread+0/288] ? worker_thread+0x0/0x120 > [kthread+73/144] kthread+0x49/0x90 > [child_rip+10/18] child_rip+0xa/0x12 > [restore_args+0/48] ? restore_args+0x0/0x30 > [kthread+0/144] ? kthread+0x0/0x90 > [child_rip+0/18] ? child_rip+0x0/0x12 > > ---[ end trace ca143223eefdc828 ]--- > BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 > IP: [klist_del+29/128] klist_del+0x1d/0x80 > PGD 0 > Oops: 0000 [1] PREEMPT SMP DEBUG_PAGEALLOC > CPU 0 > Modules linked in: tda18271 nls_iso8859_2 nls_cp852 vfat fat i915 drm > ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 xt_state > nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables > bridge llc nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 sunrpc > binfmt_misc dm_mirror dm_log dm_multipath dm_mod uinput kvm_intel kvm > snd_hda_intel snd_seq_oss snd_seq_midi_event snd_seq arc4 > snd_seq_device snd_pcm_oss ecb crypto_blkcipher cryptomgr > crypto_algapi iwl3945 snd_mixer_oss mac80211 snd_pcm mmc_block video > sdhci thinkpad_acpi mmc_core i2c_i801 snd_timer rtc_cmos rtc_core > backlight iTCO_wdt cfg80211 evdev snd i2c_core e1000e psmouse > soundcore snd_page_alloc nvram intel_agp rtc_lib iTCO_vendor_support > output serio_raw ac battery button uhci_hcd ohci_hcd ehci_hcd usbcore > [last unloaded: microcode] > Pid: 1240, comm: kmmcd Not tainted 2.6.25 #57 > RIP: 0010:[klist_del+29/128] [klist_del+29/128] klist_del+0x1d/0x80 > RSP: 0000:ffff81007cabbd00 EFLAGS: 00010286 > RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000003 > RDX: 0000000000000008 RSI: ffffffffa0102308 RDI: 0000000000000000 > RBP: ffff81007cabbd20 R08: 0000000000000001 R09: 0000000000000000 > R10: 0000000000000001 R11: ffff81007c9a6d10 R12: ffff81007c517530 > R13: ffffffffa0102260 R14: ffff81007cabbdf0 R15: ffff81007c5175a8 > FS: 0000000000000000(0000) GS:ffffffff8148c000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 0000000000000050 CR3: 0000000001001000 CR4: 00000000000026e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process kmmcd (pid: 1240, threadinfo ffff81007caba000, task ffff81007cac0000) > Stack: ffff81007cabbd10 0000000000000050 ffff81007c5173f8 ffffffffa0102260 > ffff81007cabbd50 ffffffff812012fe ffff81007cabbd50 ffff81007c5173f8 > 00000000fffffff0 ffff81007c5175f0 ffff81007cabbdb0 ffffffff8120016e > Call Trace: > [bus_remove_device+158/208] bus_remove_device+0x9e/0xd0 > [device_add+1358/1376] device_add+0x54e/0x560 > [_end+510110570/2109230024] :mmc_core:mmc_add_card+0xa2/0x140 > hald[2531]: forcibly attempting to lazy unmount /dev/mmcblk0p1 as > enclosing drive was disconnected > [_end+510117927/2109230024] :mmc_core:mmc_attach_sd+0x17f/0x860 > [_end+510109176/2109230024] ? :mmc_core:mmc_rescan+0x0/0x1c0 > [_end+510109545/2109230024] :mmc_core:mmc_rescan+0x171/0x1c0 > [run_workqueue+246/560] run_workqueue+0xf6/0x230 > [worker_thread+167/288] worker_thread+0xa7/0x120 > [autoremove_wake_function+0/64] ? autoremove_wake_function+0x0/0x40 > [worker_thread+0/288] ? worker_thread+0x0/0x120 > [kthread+73/144] kthread+0x49/0x90 > [child_rip+10/18] child_rip+0xa/0x12 > [restore_args+0/48] ? restore_args+0x0/0x30 > [kthread+0/144] ? kthread+0x0/0x90 > [child_rip+0/18] ? child_rip+0x0/0x12 > > > Code: 8b 28 41 0f 95 c7 eb 87 66 0f 1f 44 00 00 55 48 89 e5 48 83 ec > 20 4c 89 65 f0 48 89 5d e8 4c 89 6d f8 49 89 fc 48 8b 1f 48 89 df <4c> > 8b 6b 50 e8 9a 40 01 00 49 8d 7c 24 18 48 c7 c6 20 a4 2d 81 > RIP [klist_del+29/128] klist_del+0x1d/0x80 > RSP <ffff81007cabbd00> > CR2: 0000000000000050 > ---[ end trace ca143223eefdc828 ]--- Zdenek, can you please send me the full dmesg containing this? Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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