On Sun, 30 Jun 2002, Bartlomiej Zolnierkiewicz wrote:
> > (1) ide-taskfile.c: ide_do_drive_cmd(..., ide_preempt) holds channel
> > lock. Do not reacquire. NMI watchdog triggered by just booting
> > computer with IDE cdrom.
>
> Mentioned in 95 changelog.
> Already fixed in my tree, but thanks anyway.
Hmm i just spent some time last night trying to go through possible
paths for ide_do_drive_cmd to come up with a solution for that one, do you
use some sort of SCM so that i can keep track of whats been covered?
> Attached patch is next ide-clean patch pre-patch ;), just not to duplicate
> efforts. Changelog is also included. As always use with care, standard
> disclaimer apply.
Thanks
> And final note: I think that previous locking (2.4.x but ch->lock instead
> of global io_request_lock) was well tuned and almost 100% correct.
> Recent changes just made it worse (sorry Martin :) ).
> Now even if we add unmasking IRQs with disabling currently handled IRQ, it
> will be less friendlier to shared PCI interrupts (especially in PIO it
> will be overkill to disable shared IRQ for handling PIO intr!),
> so I want to revert to previous scheme...
Agreed there, thanks again for the patches.
Zwane Mwaikambo
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This archive was generated by hypermail 2b29 : Sun Jun 30 2002 - 22:00:14 EST