Thanks for all your hints but: @James: My UML got 32M and 256M swap. The UML-Host has 448M physical RAM - I think it`s enough for UML and Host. Or am I wrong?
@Ginie: The .config of my UML says: "# CONFIG_BLK_DEV_UBD_SYNC is not set". Any other ideas? Olli > On Thu, 3 Mar 2005, Oliver Baltz wrote: > >> my UML hangs while intensive processes that use the HDD. For example: >> rgrep, upgrade,... >> >> UML-Hostsystem: 2.4.27-1-386, Intel ICH5 SATA 150-Controller >> UML: 2.4.26-3um-1 > > I had a similar experience. I configured the UML with 256MB RAM, and put > the image file in /dev/shm (tmpfs). However, the default size of tmpfs is > half your physical memory (256 MB). When I did a big update, I/O buffers > went above 128MB, and UML got what it called a "kernel mode signal 7" > (SIGBUS). Limiting the RAM to 120MB (leaving a little space for overhead > and other users) cured the problem completely. Making tmpfs bigger would > also have helped. But don't enlarge it above swap space plus physical > memory, because when you fill it up, there's no space for programs and the > host kernel will panic. > > James F. Carter Voice 310 825 2897 FAX 310 206 6673 > UCLA-Mathnet; 6115 MSA; 405 Hilgard Ave.; Los Angeles, CA, USA > 90095-1555 > Email: [EMAIL PROTECTED] http://www.math.ucla.edu/~jimc (q.v. for PGP > key) > ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&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
