Messages in this thread | | | Date | Wed, 27 Aug 2003 10:11:53 -0700 | From | "Martin J. Bligh" <> | Subject | [Bug 1156] New: Loose IRQ or fail SCSI Commands under heavy I/O |
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http://bugme.osdl.org/show_bug.cgi?id=1156
Summary: Loose IRQ or fail SCSI Commands under heavy I/O Kernel Version: 2.6.0-test2 and test 3 Status: NEW Severity: high Owner: bzolnier@elka.pw.edu.pl Submitter: dan@nerp.net
Distribution: Debian Testing
Hardware Environment: PIII 1 Gz on Intel 815ae2 mainboard Software Environment: cdrecord or standard GNU commands Problem Description: Under heavy I/O performance lags and one of the devices (it changes every time) will loose it's IRQ. Sometimes the operation will continue, sometimes it will seg fault and every once in a while it will lock the PC, hard. When using SCSI emulation to a cd-rw drive cdrecord simply seg faults. When I reboot to 2.4.21 SCSI emulation works perfect. I have swapped out burners and tested on an Asus A7N8X based system with the same results.
Steps to reproduce:
Compile 2.6.0-test2 or 3 w/ SCSI emulation and appropriate support for hardware. Copy large amounts of data, 1 GB or more, from one drive to another, wait for IRQ to drop and lock-up the system or stop the transfer. Or merely attempt to burn a CD, it fails 2 out of 3 when burning CDs. Both problems are very consistent.
Device seems to be: Generic mmc CD-RW. Current: 0x0002 Profile: 0x000A Profile: 0x0009 Profile: 0x0008 Profile: 0x0002 (current) Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE FORCESPEED Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R FIFO size : 4194304 = 4096 KB Track 01: data 404 MB Total size: 464 MB (46:00.98) = 207074 sectors Lout start: 464 MB (46:02/74) = 207074 sectors cdrecord: Input/output error. test unit ready: scsi sendcmd: no error Segmentation Fault
I cannot post a copy of the IRQ failure becuase it's lock-up every time now.
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