Re: [BUG] ide dma_timer_expiry, then hard lockup

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

 



> ide_dma_timeout_retry() in ide-io.c 
>   prints the "hdc: DMA Timeout error" then calls
>   HWIF(drive)->ide_dma_end(drive);
>     which returns, and then calls 
>   hwif->INB(IDE_STATUS_REG) which is needed as an argument to ide_error()
> 
> But this hangs! -- The INB never returns.
> Now:  hwif->INB = ide_inb; in ide-iops.c

Yep and the I/O cycle never completes so the box hangs. This occurs if
the drive blows up and never switches IORDY to indicate completion. The
hpt will also do this sometimes if it gets addled by a confused drive,
while an intel one often won't.

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