http://bugzilla.kernel.org/show_bug.cgi?id=14563 Summary: SCSI tape driver: Spurious EIO and kernel OOPS Product: IO/Storage Version: 2.5 Kernel Version: 2.6.29.4, 2.6.30.3, 2.6.31.5 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: SCSI AssignedTo: linux-scsi@xxxxxxxxxxxxxxx ReportedBy: linux-kernel@xxxxxxxxxxxx Regression: No Created an attachment (id=23702) --> (http://bugzilla.kernel.org/attachment.cgi?id=23702) BUG console capture from 2.6.30.3 while writing to tape Overview: Performing tape backups using amanda 2.6.0-p2 [using 512kB block size] leads to spurious 'EIO' errors when writing to the tape; most of the time a kernel BUG is hit shortly thereafter. Steps to reproduce: Using amanda 2.6.0-p2 to perform tape backups to an HP C5683A DDS-4 tape drive; connected to a Adaptec 29160 Ultra160 SCSI adapter / aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs. Actual results: Amanda ALWAYS (on affected kernels, see below) complains about an EIO while writing to the tape a few (< 1000) MB into the tape; most of the time a kernel BUG is displayed and the system becomes unresponsive. See attachments BUG-*.txt for a selection. Unfortunately, I could not save readable BUG output from 2.6.31.5 due to a management console problem; if there is great demand I can certainly reproduce the BUG output with working console capture. Expected results: Amanda should correctly write to tape during backup as it does using kernels <= 2.6.27.10. Affected versions: The oldest kernel I tried which DOES exhibit the problem is 2.6.29.4; other kernels exhibiting this problem are 2.6.30.3 and 2.6.31.5. Non-affected versions: A distribution-patched kernel based on version 2.6.23 [2.6.23-gentoo-r8] used to work correctly since February 2008; the newest kernel I tried which did not exhibit this problem is 2.6.27.10. I did not try any 2.6.28 kernel. Additional information: See lshw-2.6.27.10.txt for a complete hardware overview; and dmesg-2.6.27.10.txt/dmesg-2.6.29.4.txt for dmesg output on a working/non-working kernel, respectively. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. -- 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
