Messages in this thread | | | Date | Tue, 16 Dec 2003 07:22:28 +1300 | From | Nigel Cunningham <> | Subject | Re: Suspend not working with SATA: |
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Hi.
Set PF_IOTHREAD on the task's flags instead. That will allow it to run during suspending.
Regards,
Nigel
On Tue, 2003-12-16 at 04:18, Jeff Garzik wrote: > Witold Krecicki wrote: > > Stopping tasks: > > ================================================================== > > stopping tasks failed (2 tasks remaining) > > Restarting tasks...<6> Strange, katad-1 not stopped > > Strange, katad-2 not stopped > > done > > > Both Pavel Machek and I posted test patches to address this... > basically, because of the design of swsusp, you must copy-n-paste the > following code into every single kernel thread: > > if (current->flags & PF_FREEZE) > refrigerator(PF_IOTHREAD); > > But I consider suspend untested at best... for reboot and suspend the > driver should issue flush-cache and other things beyond simply freezing > the kernel thread. Further, suspending will suck if the kernel thread > itself is the one doing I/O on behalf of the driver. This occurs if the > transfer mode is PIO rather than DMA. > > Jeff > > > > - > 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/ -- My work on Software Suspend is graciously brought to you by LinuxFund.org.
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