On Wednesday 14 March 2007, Stanislav Brabec wrote: > Bartlomiej Zolnierkiewicz wrote: > > On Wednesday 14 March 2007, Stanislav Brabec wrote: > > > Albert Lee wrote: > > > > Tejun Heo wrote: > > > > > > > > Hmmm... weird. Your drive bears the same model name as Stanislav's. I > > > > > don't think the low level driver is causing the difference. They both > > > > > use the standard libata HSM implementation. Any ideas? Stanislav, can > > > > > you try to connect that zip drive to another IDE controller? > > > > > > > Maybe it's also worth a try to replace the medium, cable or even the > > > > drive itself to rule out the possibility of hardware problem. > > > > > > I'll try it. I cannot replace the drive, I don't have any spare one, but > > > my colleague has. He will try it on his machine. So let's wait for > > > result. > > > > > > Looking at the syslog in Novell bug 232086 in detail, following line may > > > indicate hardware failure: > > > usb 5-1: string descriptor 0 read error: -22 > > > > > > My drive is a slave on bus, where master is a modern Seagate ST3160812A. > > > > > > On my system I see two regressions: > > > > > It is reproduceable, SuSE 10.1 kernel is "good" and SuSE 10.2 is "bad". > > So even if this is caused by some hardware problems or different > > initialization order git-bisect on 2.6.16-2.6.20 should tell us what > > change caused the problem. > > After more kernels testing I am inclined to suspect broken hardware. > > 2.4.20 (SuSE 8.1) and newer kernels exhibits this "DRQ isn't asserted" > error. The latest kernel working without any problem is five years old > 2.4.18 (SuSE 8.0). > > In some older systems the delay was "hidden" somewhere in the boot > process, now userspace processes repeatedly scan all media, which makes > delay permanent. I'm lost, weren't you saying that there are two problems actually: * "DRQ isn't asserted" one which has always been there (but ide-floppy works) * the 2.6.16->2.6.20 (SuSE 10.1->10.2) regression (ide-floppy doesn't work) ? Bart - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
