Package: openafs-modules-dkms Version: 1.4.12.1+dfsg-4 Severity: normal This is my first time reporting a bug, so I am not sure if this is a new bug or its similar to this one. dpkg -l | grep openafs ii openafs-client 1.4.12.1+dfsg-4 AFS distributed filesystem client support ii openafs-modules-dkms 1.4.12.1+dfsg-4 AFS distributed filesystem kernel module DKMS source
How to reporduce 1- install openafs-modules-dkms openafs-client 2- service openafs-client stop 3- change AFS_DYNROOT=false in /etc/openafs/afs.conf.client ( let openafs client fail to load root.afs) 4- service openafs-client start 5- service openafs-client stop system hangs ================================================================ using openafs-modules-dkms 1.4.12.1+dfsg-4 [ 719.950866] BUG: unable to handle kernel NULL pointer dereference at (null) [ 719.950869] IP: [<ffffffff810c8e60>] bdi_forker_task+0x13f/0x2bd [ 719.950873] PGD 0 [ 719.950874] Oops: 0000 [#1] SMP [ 719.950876] last sysfs file: /sys/devices/virtual/bdi/afs/uevent [ 719.950878] CPU 1 [ 719.950878] Modules linked in: netconsole configfs ext4 jbd2 crc16 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd i2c_piix4 i2c_core soundcore parport_pc psmouse snd_page_alloc parport joydev processor button serio_raw pcspkr ac evdev ext3 jbd mbcache dm_mod sg sr_mod usbhid hid cdrom sd_mod crc_t10dif ata_generic ata_piix ahci ohci_hcd e1000 libata ehci_hcd scsi_mod thermal thermal_sys usbcore n ls_base [last unloaded: openafs] [ 719.950892] Pid: 25, comm: bdi-default Tainted: P W 2.6.32-5-amd64 #1 VirtualBox [ 719.950893] RIP: 0010:[<ffffffff810c8e60>] [<ffffffff810c8e60>] bdi_forker_task+0x13f/0x2bd [ 719.950896] RSP: 0018:ffff88003fa7de50 EFLAGS: 00010202 [ 719.950897] RAX: 0000000000000044 RBX: 0000000000000000 RCX: ffffffff8142c000 [ 719.950898] RDX: 0000000000000000 RSI: 0000000000000082 RDI: 0000000000000246 [ 719.950899] RBP: 0000000000000000 R08: 00000000000073ca R09: ffffffff814611f0 [ 719.950901] R10: 00000001018960c0 R11: ffffffff81027ff8 R12: ffffffff81473980 [ 719.950902] R13: ffff88003fa33f90 R14: ffff88003fa7de60 R15: ffffffff814739d0 [ 719.950903] FS: 0000000000000000(0000) GS:ffff880001880000(0000) knlGS:0000000000000000 [ 719.950905] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [ 719.950906] CR2: 0000000000000000 CR3: 0000000001001000 CR4: 00000000000006e0 [ 719.950913] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 719.950914] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 719.950916] Process bdi-default (pid: 25, threadinfo ffff88003fa7c000, task ffff88003fa33f90) [ 719.950917] Stack: [ 719.950918] ffffffff814739c0 ffffffff814739b0 ffff88003fa33f90 ffff88003fa34288 [ 719.950919] <0> 000000023f9afcd8 0000000000000000 ffff88003fa34288 ffffffff8103aa76 [ 719.950921] <0> 00000003cc1c13c4 ffff88003f9afcc8 ffffffff81473980 ffff88003f9afcd0 [ 719.950923] Call Trace: [ 719.950925] [<ffffffff8103aa76>] ? __wake_up_common+0x44/0x72 [ 719.950927] [<ffffffff810c8d21>] ? bdi_forker_task+0x0/0x2bd [ 719.950929] [<ffffffff81064c4d>] ? kthread+0x79/0x81 [ 719.950931] [<ffffffff81011baa>] ? child_rip+0xa/0x20 [ 719.950933] [<ffffffff81064bd4>] ? kthread+0x0/0x81 [ 719.950934] [<ffffffff81011ba0>] ? child_rip+0x0/0x20 [ 719.950935] Code: 8b 53 08 48 8d 7b 10 48 c7 c6 9b 85 0c 81 48 89 50 08 48 89 02 48 b8 00 02 20 00 00 00 ad de 48 89 43 08 e8 df f2 fc ff 48 89 eb <48> 8b 6d 00 48 81 fb 30 3a 47 81 0f 85 3a ff ff ff b8 01 00 00 [ 719.950945] RIP [<ffffffff810c8e60>] bdi_forker_task+0x13f/0x2bd [ 719.950947] RSP <ffff88003fa7de50> [ 719.950948] CR2: 0000000000000000 [ 719.950950] ---[ end trace 22ba0eb7caa8e3c2 ]--- [ 719.950951] Kernel panic - not syncing: Fatal exception in interrupt [ 719.950952] Pid: 25, comm: bdi-default Tainted: P D W 2.6.32-5-amd64 #1 [ 719.950953] Call Trace: [ 719.950956] [<ffffffff812fa67a>] ? panic+0x86/0x143 [ 719.950959] [<ffffffff8106861c>] ? down_trylock+0x28/0x2e [ 719.950961] [<ffffffff8104e71e>] ? console_unblank+0x16/0x60 [ 719.950963] [<ffffffff812fd3b5>] ? oops_end+0xa7/0xb4 [ 719.950966] [<ffffffff810323fc>] ? no_context+0x1e9/0x1f8 [ 719.950968] [<ffffffff810325b1>] ? __bad_area_nosemaphore+0x1a6/0x1ca [ 719.950970] [<ffffffff8107747f>] ? is_module_text_address+0x5/0xc [ 719.950972] [<ffffffff810c8e1a>] ? bdi_forker_task+0xf9/0x2bd [ 719.950974] [<ffffffff812fc895>] ? page_fault+0x25/0x30 [ 719.950977] [<ffffffff81027ff8>] ? flat_send_IPI_mask+0x0/0x5 [ 719.950979] [<ffffffff810c8e60>] ? bdi_forker_task+0x13f/0x2bd [ 719.950981] [<ffffffff8103aa76>] ? __wake_up_common+0x44/0x72 [ 719.950983] [<ffffffff810c8d21>] ? bdi_forker_task+0x0/0x2bd [ 719.950984] [<ffffffff81064c4d>] ? kthread+0x79/0x81 [ 719.950986] [<ffffffff81011baa>] ? child_rip+0xa/0x20 [ 719.950987] [<ffffffff81064bd4>] ? kthread+0x0/0x81 [ 719.950988] [<ffffffff81011ba0>] ? child_rip+0x0/0x20 ===================================================================== using openafs-modules-dkms 1.4.14+dfsg-2~bpo60+1 [ 70.379011] ------------[ cut here ]------------ [ 70.379012] WARNING: at /build/buildd-linux-2.6_2.6.32-35-amd64-aZSlKL/linux-2.6-2.6.32/debian/build/source_amd64_none/mm/backing-dev.c :492 bdi_forker_task+0xf9/0x2bd() [ 70.379014] Hardware name: VirtualBox [ 70.379014] Modules linked in: netconsole configfs ext4 jbd2 crc16 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc psmouse i2c_piix4 parport_pc i2c_core parport joydev button pcspkr evdev serio_raw ac processor ext3 jbd mbcache dm_mod sg sr_mod usbhid hid cdrom sd_mod crc_t10dif ata_generic ahci ohci_hcd ehci_hcd ata_piix usbcore libata nls_base e1000 thermal thermal_sys s csi_mod [last unloaded: openafs] [ 70.379027] Pid: 25, comm: bdi-default Tainted: P W 2.6.32-5-amd64 #1 [ 70.379027] Call Trace: [ 70.379029] [<ffffffff810c8e1a>] ? bdi_forker_task+0xf9/0x2bd [ 70.379031] [<ffffffff810c8e1a>] ? bdi_forker_task+0xf9/0x2bd [ 70.379032] [<ffffffff8104df20>] ? warn_slowpath_common+0x77/0xa3 [ 70.379034] [<ffffffff810c8e1a>] ? bdi_forker_task+0xf9/0x2bd [ 70.379036] [<ffffffff8103aa76>] ? __wake_up_common+0x44/0x72 [ 70.379038] [<ffffffff810c8d21>] ? bdi_forker_task+0x0/0x2bd [ 70.379039] [<ffffffff81064c4d>] ? kthread+0x79/0x81 [ 70.379041] [<ffffffff81011baa>] ? child_rip+0xa/0x20 [ 70.379042] [<ffffffff81064bd4>] ? kthread+0x0/0x81 [ 70.379043] [<ffffffff81011ba0>] ? child_rip+0x0/0x20 [ 70.379044] ---[ end trace d79eb7cb9e6bff56 ]--- [ 70.379045] bdi ffff88003f34ec00/<NULL> is not registered! ========================================================================= -- System Information: Debian Release: 6.0.2 APT prefers proposed-updates APT policy: (500, 'proposed-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages openafs-modules-dkms depends on: ii bison 1:2.4.1.dfsg-3 A parser generator that is compati ii dkms 2.1.1.2-5 Dynamic Kernel Module Support Fram ii flex 2.5.35-10 A fast lexical analyzer generator. ii libc6-dev 2.11.2-10 Embedded GNU C Library: Developmen openafs-modules-dkms recommends no packages. openafs-modules-dkms suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". 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