Re: regression: disk error loop (panic?) ide_do_rw_disk-bad:

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On Thu, Jul 19 2007, Giacomo Catenazzi wrote:
> Linus Torvalds wrote:
> > 
> > On Thu, 19 Jul 2007, Bartlomiej Zolnierkiewicz wrote:
> >> Thanks for finding and fixing this.
> >>
> >> The latest patch (with additional cleanups) also looks good and should be
> >> safe enough (unchanged behavior for all non-pc requests) to merge it now.
> >>
> >> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]>
> > 
> > Ok, Jens - mind signing off on the patch you sent out, and writing an 
> > explanatory message? Feel free to just crib from my explanation of my 
> > original patch, or whatever.
> > 
> > And it would be beautiful if people who saw the bad behaviour before 
> > reverting the ide.c changes were to go back to that broken state, and try 
> > the patch, and just verify that it acts like it should (ie you should see 
> > just a few error messages, and it shouldn't cause the IDE layer to go 
> > ballistic any more).
> 
> Ok, I tested a5fcaa210626a79465321e344c91a6a7dc3881fa , with
> the Jeans' patch with clean-up (Message-ID:
> <[email protected]>).
> 
> I don't see the error loop. but only 4 errors (2 for each hd, at hddtemp
> start)
> 
> Jul 19 08:22:19 catee kernel: hda: selected mode 0x45
> Jul 19 08:22:23 catee kernel: ide_do_rw_disk - bad command: dev hda:
> type=2, flags=104c8
> Jul 19 08:22:23 catee kernel:
> Jul 19 08:22:23 catee kernel: sector 14657019, nr/cnr 0/0
> Jul 19 08:22:23 catee kernel: bio c21a4780, biotail c21a4780, buffer
> 00000000, data 00000000, len 36
> Jul 19 08:22:23 catee kernel: cdb: 12 00 00 00 24 00 00 00 00 00 00 00
> 00 00 00 00
> Jul 19 08:22:23 catee kernel: ide_do_rw_disk - bad command: dev hdc:
> type=2, flags=104c8
> Jul 19 08:22:23 catee kernel:
> Jul 19 08:22:23 catee kernel: sector 34711027, nr/cnr 0/0
> Jul 19 08:22:23 catee kernel: bio c21a4740, biotail c21a4740, buffer
> 00000000, data 00000000, len 36
> Jul 19 08:22:23 catee kernel: cdb: 12 00 00 00 24 00 00 00 00 00 00 00
> 00 00 00 00
> Jul 19 08:22:23 catee kernel: ide_do_rw_disk - bad command: dev hdc:
> type=2, flags=104c8
> Jul 19 08:22:23 catee kernel:
> Jul 19 08:22:23 catee kernel: sector 7387152, nr/cnr 0/0
> Jul 19 08:22:23 catee kernel: bio c21a4900, biotail c21a4900, buffer
> 00000000, data 00000000, len 36
> Jul 19 08:22:23 catee kernel: cdb: 12 00 00 00 24 00 00 00 00 00 00 00
> 00 00 00 00
> Jul 19 08:22:23 catee kernel: ide_do_rw_disk - bad command: dev hda:
> type=2, flags=104c8
> Jul 19 08:22:23 catee kernel:
> Jul 19 08:22:23 catee kernel: sector 7387152, nr/cnr 0/0
> Jul 19 08:22:23 catee kernel: bio c21a4900, biotail c21a4900, buffer
> 00000000, data 00000000, len 36
> Jul 19 08:22:23 catee kernel: cdb: 12 00 00 00 24 00 00 00 00 00 00 00
> 00 00 00 00

Perfect, thanks a lot for testing!

Tested-By: Giacomo Catenazzi <[email protected]>

Linus, if you merge the patch I sent, can you just add this Tested-by?

-- 
Jens Axboe

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