Package: linux-2.6 Severity: normal -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Hi, Same issue here, it appears (to me) only when you call 'lsof' with unprivileged user. Obviously this behavior was introduced by the last security upgrade (2.6.32-35squeeze1). Dmesg (with the stack trace) is attached. - -- System Information: Debian Release: 6.0.2 APT prefers stable-updates APT policy: (800, 'stable-updates'), (800, 'stable'), (96, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-amd64 (SMP w/1 CPU core) Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAk5qQEkACgkQbO4uEp7kOBPK9gCfVeoCh+/rj+Mb4TwBmFtrqjmX NbkAnA1hwxxWsgESfbPSFoOgb7oKopqF =9UhI -----END PGP SIGNATURE-----
[ 4704.125330] BUG: unable to handle kernel paging request at fffffffffffffff3 [ 4704.125335] IP: [<ffffffff8112f98d>] m_stop+0x15/0x4c [ 4704.125342] PGD 1003067 PUD 1004067 PMD 0 [ 4704.125346] Oops: 0000 [#11] SMP [ 4704.125348] last sysfs file: /sys/devices/virtual/sound/timer/uevent [ 4704.125352] CPU 0 [ 4704.125353] Modules linked in: fuse firewire_sbp2 loop snd_ca0106 snd_seq_midi snd_seq_midi_event snd_rawmidi snd_ac97_codec ac97_bus snd_pcm snd_seq snd_timer snd_seq_device radeon arc4 ttm snd ecb soundcore rt2500pci drm_kms_helper snd_page_alloc rt2x00pci rt2x00lib led_class pcspkr edac_core edac_mce_amd k8temp mac80211 psmouse serio_raw evdev cfg80211 rfkill drm i2c_nforce2 i2c_algo_bit eeprom_93cx6 i2c_core button processor ext4 mbcache jbd2 crc16 sg sr_mod usbhid hid sd_mod crc_t10dif cdrom ohci_hcd ata_generic sata_sil pata_amd sata_nv fan firewire_ohci thermal firewire_core crc_itu_t thermal_sys sky2 libata ehci_hcd forcedeth scsi_mod usbcore nls_base [last unloaded: scsi_wait_scan] [ 4704.125398] Pid: 3166, comm: lsof Tainted: G D 2.6.32-5-amd64 #1 MS-7125 [ 4704.125400] RIP: 0010:[<ffffffff8112f98d>] [<ffffffff8112f98d>] m_stop+0x15/0x4c [ 4704.125405] RSP: 0018:ffff880094767e88 EFLAGS: 00010286 [ 4704.125407] RAX: ffffffff8131fad0 RBX: ffff880094767ed8 RCX: 000000d07c574067 [ 4704.125410] RDX: 00000000ffffff00 RSI: fffffffffffffff3 RDI: ffff8800bc205a80 [ 4704.125412] RBP: ffff88003761b200 R08: ffff880094767e78 R09: 0000000000000000 [ 4704.125414] R10: 0000000000001000 R11: ffffffff811516f3 R12: fffffffffffffff3 [ 4704.125417] R13: 00000000fffffff3 R14: 0000000000000000 R15: 0000000000001000 [ 4704.125420] FS: 00007fbcd63a1700(0000) GS:ffff880001800000(0000) knlGS:0000000000000000 [ 4704.125422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4704.125424] CR2: fffffffffffffff3 CR3: 00000000947a6000 CR4: 00000000000006f0 [ 4704.125427] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4704.125429] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 4704.125432] Process lsof (pid: 3166, threadinfo ffff880094766000, task ffff8800374c46a0) [ 4704.125434] Stack: [ 4704.125435] 0000000000001000 ffff880094767ed8 ffff8800bc205a80 ffffffff81105aa9 [ 4704.125439] <0> 0000000001b4fc98 ffff880094767f50 0000000001b4ec90 ffff8800945e1000 [ 4704.125443] <0> ffff8800bc205ab8 0000000000008001 0000000000000000 0000000000001000 [ 4704.125447] Call Trace: [ 4704.125451] [<ffffffff81105aa9>] ? seq_read+0x269/0x388 [ 4704.125456] [<ffffffff810ef510>] ? vfs_read+0xa6/0xff [ 4704.125459] [<ffffffff810ef625>] ? sys_read+0x45/0x6e [ 4704.125463] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [ 4704.125465] Code: 48 89 df e8 e3 c2 f1 ff 31 c0 40 84 ed 49 0f 45 c4 5b 5d 41 5c c3 55 53 48 83 ec 08 48 85 f6 48 8b 6f 60 74 1a 48 3b 75 10 74 14 <48> 8b 1e 48 8d 7b 60 e8 dd 86 f3 ff 48 89 df e8 ac c2 f1 ff 48 [ 4704.125489] RIP [<ffffffff8112f98d>] m_stop+0x15/0x4c [ 4704.125493] RSP <ffff880094767e88> [ 4704.125495] CR2: fffffffffffffff3 [ 4704.125497] ---[ end trace c010ebc4cf0d5b6d ]---
