Messages in this thread | | | Date | Fri, 29 Apr 2005 00:20:48 +0200 | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: IDE problems with rmmod ide-cd |
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On 4/28/05, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: > On Iau, 2005-04-28 at 21:46, Bartlomiej Zolnierkiewicz wrote: > > > The problem you are thinking of was also an ATAPI cache flush command, > > > so I'm not so sure I would call it harmless... I haven't changed > > > anything in there recently, Bart? > > > > I don't remember changing anything there recently. > > Alan, please give more details of the issue. > > Torvalds tree - head > > Hardware is as follows > Promise IDE controller on ide0/1 - no drives > VIA IDE controller on ide2/3 - hdd is a DVD-ROM > and hdg is a disk. > > hdd: TOSHIBA DVD-ROM SD-M1212 > > I had some code logging the commands issued and I did rmmod ide-cd. At > that point it sent a cache flush to the drive which then errorred it. > > The actual log entry is > > hdd: packet command error > Gives status=0x51, error=0x50 > > Dumping the error in detail its > > Error;Illegal Request (Sense 0x05) > Invalid command operation code (0x20, 0x00) > The failed "Flush cache" packet command was > "35 00 00 00 00 00 ... 00"
I would suggest auditing MRW support in cdrom.c. IDE layer itself never sends GPCMD_FLUSH_CACHE. - 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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