Re: [linux-pm] Re: A unresponsive file system can hang all I/O in the system on linux-2.6.23-rc6 (dirty_thresh problem?)
On Fri, 28 Sep 2007, Peter Zijlstra wrote: > On Fri, 2007-09-28 at 07:28 -0600, Jonathan Corbet wrote: > > Is it really NFS-related? I was trying to back up my 2.6.23-rc8 system > > to an external USB drive the other day when something flaked and the > > drive fell off the bus. That, too, was sufficient to wedge the entire > > system, even though the only thing which needed the dead drive was one > > rsync process. It's kind of a bummer to have to hit the reset button > > after the failure of (what should be) a non-critical piece of hardware. > > > > Not that I have a fix to propose...:) > > the per bdi work in -mm should make the system not drop dead. > > Still, would a remove,re-insert of the usb media end up with the same > bdi? That is, would it recognise as the same and resume the transfer. Removal and replacement of the media might work. I have never tried it. But Jon described removal of the device, not the media. Replacing the device definitely will not work. Alan Stern - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [linux-pm] Re: A unresponsive file system can hang all I/O in the system on linux-2.6.23-rc6 (dirty_thresh problem?)
On Fri, 28 Sep 2007, Peter Zijlstra wrote: On Fri, 2007-09-28 at 07:28 -0600, Jonathan Corbet wrote: Is it really NFS-related? I was trying to back up my 2.6.23-rc8 system to an external USB drive the other day when something flaked and the drive fell off the bus. That, too, was sufficient to wedge the entire system, even though the only thing which needed the dead drive was one rsync process. It's kind of a bummer to have to hit the reset button after the failure of (what should be) a non-critical piece of hardware. Not that I have a fix to propose...:) the per bdi work in -mm should make the system not drop dead. Still, would a remove,re-insert of the usb media end up with the same bdi? That is, would it recognise as the same and resume the transfer. Removal and replacement of the media might work. I have never tried it. But Jon described removal of the device, not the media. Replacing the device definitely will not work. Alan Stern - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
