On Mon, 12 Feb 2007, Oliver Paulus wrote: > Hello, > > I get a kernel oops if I want to read from my SCSI HP tape (C5683A) drive - > using tar command. > > Here my system information: > 1. Kernel: 2.6.18-3-vserver-amd64 > 2. OS: Debian Etch > ... > I get a kernel oops if I want to access the /dev/st0 with tar (or mondorescue > restore - because this program uses tar too). Here the oops info: > Feb 8 20:15:35 hal9000 kernel: st0: Block limits 1 - 16777215 bytes. > Feb 8 20:15:56 hal9000 kernel: Unable to handle kernel paging request at > ffff82bc8057b000 RIP: > Feb 8 20:15:56 hal9000 kernel: [<ffffffff8020748b>] kmem_cache_free+0x42/0x1bb > Feb 8 20:15:56 hal9000 kernel: PGD 0 > Feb 8 20:15:56 hal9000 kernel: Oops: 0000 [13] SMP > Feb 8 20:15:56 hal9000 kernel: CPU 0 > Feb 8 20:15:56 hal9000 kernel: Modules linked in: usb_storage cdc_acm ipv6 > dm_snapshot dm_mirror dm_mod loop snd_hda_intel snd_hda_codec serio_raw snd_pcm > snd_timer snd soundcore snd_page_alloc pcspkr psmouse shpchp pci_hotplug st > joydev evdev ext3 jbd mbcache raid1 md_mod ide_generic sd_mod ide_cd cdrom > usbhid aic7xxx scsi_transport_spi via_rhine mii ehci_hcd sata_via via82cxxx > uhci_hcd libata scsi_mod generic ide_core processor > Feb 8 20:15:56 hal9000 kernel: Pid: 16448, comm: tar Not tainted > 2.6.18-3-vserver-amd64 #1 > Feb 8 20:15:56 hal9000 kernel: RIP: 0010:[<ffffffff8020748b>] > [<ffffffff8020748b>] kmem_cache_free+0x42/0x1bb ... > Would be great if you can help me. Is this an already known issue? > It may be a known issue. A somewhat similar oops was reported in the Bugzilla item 7919. See http://marc.theaimsgroup.com/?l=linux-scsi&m=117050154700255&w=2 for more information and a patch. The patch is also in the current linux git tree. Kai - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html