Messages in this thread | | | Date | Sun, 23 Jan 2005 18:33:41 +0100 | From | Sven Köhler <> | Subject | Re: 2.6 more picky about IDE drives than 2.4 ? |
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>>i have many problems with kernel 2.6.10 since it won't run stable with >>an IDE-device. It's an internal IDE-RAID subsystem. The DMA is >>frequently disabled, and even writes/reads fail and the kernel reports >>I/O-Errors for many sectors. The RAID-device doesn't report any errors >>it it's own event-log. You can have a closer look at the error-messages >>below. >> >>I'm mailing to the LKML, since i haven't been abled to reproduce the >>problem with a kernel 2.4 bases system, but it randomly happens with 2.6 >>kernels. Let's take the latest Knoppix as an example (it comes with both >>kernels): >>- if i boot kernel 2.4, i can stress test the harddisk as much as i >>want. the kernel does report any problem and it doesn't disable DMA well >>- if i boot kernel 2.6, after a while, there are the error-message below >>in the log. "hdparm -k1" doesn't help, the kernel will disable DMA mode. >>There was a also a bigger problems for two times now, where the kernel >>refused to write to the devide, due to the I/O-Errors below. I'm very >>sad, that i haven't the log-lines prior to the I/O-Errors. > > You didn't give any information about your hardware (controller type, > drives used etc). Please read REPORTING-BUGS in the kernel source > directory. Also please find last working kernel version (2.5 or 2.6).
The hardware used was a Intel 440GX Chipset (PIIX southbridge, max UDMA33), and a Sis 755 (SiS964 soutbridge, max UDMA133). The drive is an EasyRAID R5A.
http://www.easyraid.com/index.php?Products:easyRAID_R5A
>>I testes the RAID-subsystem with two different PC-systems. Always the >>same result: 2.4 works, 2.6 does not. It's hard for me to reproduce the >>Errors through. I'm still writing an application to reliably reproduce >>them :-( Does anybody know a good stress-test perhaps? Sequential >>reading doesn't seem to do the trick. >> >>What changes have been applied to the IDE subsystem from kernel 2.4 to >>kernel 2.6? What may cause this different behaviour? What does >>"status=0x51" mean? And why is "error=0x00" although the Error-Bit in >>the status-byte has been set. (i guess this is what status=0x51 means). >> >>How can the behaviour of kernel 2.6 be reverted to the behaviour of >>kernel 2.4? I already tried "hda=nowerr" in the append-line, but it >>doesn't help either. Is it a Bug of kernel 2.6, or should i smash the >>manufactures doors, to make them release a firmware-update of the >>RAID-subsystem since it reports strange values to the OS? > > Dunno, I don't have a magic ball... ;)
So i guess you will not know The R5A, and the Problems of Kernel 2.6 seems to be controller independant (Intel and SiS testen). - 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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