On Mon, Dec 12, 2005 at 09:25:04PM +0100, Blaisorblade wrote: > On Monday 12 December 2005 08:20, Matthew Palmer wrote: > > I'm running into problems booting UMLs at present, with a regular (though > > not 100% consistent) hang at the point where the root filesystem is > > mounted. > > > line_ioctl: tty0: ioctl KDSIGACCEPT called > (Ignore that, it's a harmless warning).
I thought it might have been indicative of a warning-turned-fatal-via-race-condition or something odd like that. > > Environment: > > /usr/bin/linux is 2.6.11um-1 (built from custom Ubuntu packages) > > kernel is 2.6.12umlhost-skas3-v8.2 > > Running an Ubuntu hoary image > > > Is this a known bug in any form? Does it look familiar? > > No, but unless you have already setup custom-built kernels, I'd first check > if, simply, there's some problem with console configuration (say console > channels disabled, for instance)... It was working nicely a while ago, and as I say it works every now and then (on an identical command line -- I can run /usr/bin/linux [...], have it boot up, log in, shut the VM down again, press up-arrow, then enter, and it'll hang) so I'm thinking it probably isn't a console/config error (along with the fact that it does it's whole mmap2() thing when it hangs). > > Any recommended > > debugging steps? I'd be willing to try an upgraded guest or host kernel if > > it's a known problem that's been fixed in the meantime. > > Since you start with 2.6.11, and we are at 2.6.14, that's a good try to do. > Also you run SKAS3 on the host, so there should be no problem with upgrading. I've upgraded to a vanilla 2.6.14 kernel with the bs2 patch as the guest, and it exhibits identical symptoms. Just for shits-and-giggles, though, I thought I'd be funny and try reverting to Wot We Had Before -- namely, ext3 UBDs (instead of XFS -- which was chosen because it didn't chew N*100MB of space for FS metadata). It worked... different, as I got two consecutive boots out of it, but now it's back to it's old tricks. - Matt ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
