On Mon, Mar 31, 2008 at 09:09:17AM -0400, Martin Grossman wrote: > My hosts (100) are all running 2.4.35 with skas3 and all UML patches. > My UMLs (guests) are all running 2.4.35 with all UML patches.
I don't think you'll get much help with something as old as 2.4. I haven't touched 2.4 in years. However, ... > 1) Once in 1 UML /bin/bash was core dumping every time it ran. I could > see this by killing the UML and > mounted to rootfs via loopback. /bin/bash (after a loopback mount) > had the correct checksum. > > 2) Twice the "WC" program woulc always get a segfault yet once the UML > was down and rootfs mounted via > loopback the "WC" binary had the correct checksum. > > 3) SSHD inside the UMLs sometimes imm close incoming connections yet > stays running. If I kill off sshd and > restart it, it imm dies. > > 4) OSPFs are getting segfaults in all sorts of places. Its as if the > memory (code/stack) is getting corrupted. if these are 32-bit UMLs running on 64-bit hosts, there were various host bugs (and I think maybe a UML bug or two) which would cause process segfaults. > subroutine A calls subroutine B and gets a segfault pushing the middle > argument..... > > subB( oi, node->a, node->b) > > using GDB node is a valid pointer and its already pushed node->b onto > the stack and gets a segfault > when pushing node->a onto the stack. node is in %ebx, and is valid, and > both %ebp and %esp are > also valid. Don't sweat the process code. These are kernel bugs (either host or UML) of some sort. Jeff -- Work email - jdike at linux dot intel dot com ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user