Re: [BUG] ide dma_timer_expiry, then hard lockup

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> >    Indeed... but the thing is we don't know what's asserted in this case 
> > -- remember, it's reading the status register that locks everything up...
> 
> Exactly.  And IORDY shouldn't really apply there,
> unless some nitwit standards person wrote it into a spec..

Could it be we need to reset the state machine at this point before we
touch the registers again - that wouldn't be the first controller with
this limit and undocumented.

On the 370 we already 

Linas; For the debug on the libata one turn on ATA_DEBUG and
ATA_VERBOSE_DEBUG in include/linux/libata.h and it should spew
diagnostics before the freeze. I suspect thats a different problem to the
hang you see now but I'd like to debug both.

Alan
-
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

[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux