Messages in this thread | | | Date | Sat, 22 Jan 2005 02:14:53 +0100 | From | Pierre Ossman <> | Subject | Page fault in umount |
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When I yank out my MP3 player, the programs trying to umount the disk cause the following page fault:
usb 1-5: USB disconnect, address 2 scsi0 (0:0): rejecting I/O to dead device FAT bread failed in fat_clusters_flush Unable to handle kernel paging request at virtual address 6b6b6b6b printing eip: e0a0ecaf *pde = 00000000 Oops: 0000 [#1] PREEMPT Modules linked in: radeon pcspkr iptable_filter tun parport_pc lp parport irport irnet ppp_generic slhc ircomm_tty ircomm irda crc_ccitt sd_mod autofs4 hidp rfcomm l2cap bluetooth pcmcia sunrpc ipt_MASQUERADE iptable_nat usb_storage scsi_mod ip_conntrack ip_tables microcode binfmt_misc nls_iso8859_1 nls_cp437 vfat fat ext3 jbd video button battery ac ohci1394 ieee1394 yenta_socket pcmcia_core uhci_hcd ehci_hcd i2c_i801 i2c_core snd_intel8x0m snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc 8139cp mii CPU: 0 EIP: 0060:[<e0a0ecaf>] Not tainted VLI EFLAGS: 00010296 (2.6.10) EIP is at scsi_device_put+0xf/0x70 [scsi_mod] eax: 6b6b6b6b ebx: d8994150 ecx: 00000000 edx: 00000000 esi: 6b6b6b6b edi: dfcae46c ebp: 00000000 esp: ce6b3ee4 ds: 007b es: 007b ss: 0068 Process umount (pid: 7190, threadinfo=ce6b2000 task=cbe5c000) Stack: d883b9f4 d8994150 d883b9f4 e0b38103 6b6b6b6b e0b3a190 d8994150 e0b386f7 d8994150 00000000 dc6a1764 dc6a17f8 c0195e56 dc6a17f8 00000000 dc6a19b8 c0472680 00000000 00000000 c0195ed0 dc6a1764 c0193acd d89645f8 e09f6ec0 Call Trace: [<e0b38103>] scsi_disk_put+0x33/0x50 [sd_mod] [<e0b3a190>] scsi_disk_release+0x0/0x1b0 [sd_mod] [<e0b386f7>] sd_release+0x47/0x90 [sd_mod] [<c0195e56>] blkdev_put+0xc6/0x170 [<c0195ed0>] blkdev_put+0x140/0x170 [<c0193acd>] kill_block_super+0x3d/0x60 [<c019144c>] deactivate_super+0xac/0x120 [<c01b4f95>] __mntput+0x25/0x40 [<c01b5c9f>] sys_umount+0x3f/0xa0 [<c01746a4>] sys_munmap+0x44/0x70 [<c0103c59>] sysenter_past_esp+0x52/0x75 Code: 34 24 e8 05 ba 90 df ba fa ff ff ff eb e0 8d b4 26 00 00 00 00 8d bc 27 00 00 00 00 83 ec 0c 89 74 24 08 8b 74 24 10 89 5c 24 04 <8b> 06 8b 80 b4 00 00 00 8b 00 85 c0 74 1f bb 00 e0 ff ff 21 e3
The device is mounted in sync so shouldn't this be safe as long as the device isn't busy? This works on other USB devices I have. A page fault seems severe either way.
Rgds Pierre - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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