On Friday 13 October 2006 22:07, Jeff Dike wrote: > On Tue, Oct 10, 2006 at 06:17:06PM -0500, Christopher S. Aker wrote: > > This is 2.6.18-um, on top of a 2.6.16.29-skas3-v8.2 host. > > > > Kernel file is here: > > http://www.theshore.net/~caker/uml/kernels/2.6.18-linode25 > > > > > > Kernel panic - not syncing: Kernel mode fault at addr 0x92c00000, ip > > 0x80bcead Jeff, are these addresses normal? They tell that the binary is a statically linked one - but what is the memory layout? Chris, can you post cat /proc/<pid>/maps on a running instance of that kernel, together with host and guest config (the guest's one is contained there, I know, but I don't have the time to extract).
I'm suspiscious about memory layout problems (say host with unusual splits, like 1G/3G, or some problem with memory mappings anyhow). > The stack I get from that is: I.e. all the rest are bogus functions? There are automated solutions for this - compiling with frame pointers allows correct backtracing with a runtime penalty but is implemented; however, we could reuse (not copy, please, we cannot maintain it) the x86 DWARF unwinder (instead of using frame pointer and to slow down fast paths, additional out-of-line debug info are used when the stack trace is output) - but we should implement this latter one. Jeff, can you take a look at it? > 85a0f49c: [<800350cf>] csum_partial+0xdb/0xe8 > 85a0f74c: [<802aafe2>] skb_checksum+0xe7/0x28f > 85a0f788: [<802afd31>] skb_checksum_help+0x9c/0x13e > 85a0f7ac: [<803292fc>] ip_nat_fn+0x1d2/0x1e7 > 85a0f7e0: [<80329528>] ip_nat_local_fn+0x75/0xf3 > 85a0f808: [<802d8569>] nf_iterate+0x63/0x7b > 85a0f830: [<802d85ec>] nf_hook_slow+0x6b/0xe4 > 85a0f86c: [<802e4a44>] ip_queue_xmit+0x3d7/0x4c2 > 85a0f944: [<802f7668>] tcp_transmit_skb+0x2b8/0x4b1 > 85a0f984: [<802f91fd>] tcp_push_one+0xde/0x159 > 85a0f9ac: [<802eca55>] tcp_sendmsg+0x438/0xe54 > 85a0fa30: [<8030a718>] inet_sendmsg+0x4a/0x56 > __sock_sendmsg > 85a0fa48: [<802a4aad>] do_sock_write+0xbb/0xc5 > 85a0fa6c: [<802a4c5f>] sock_aio_write+0x95/0x99 > 85a0fae0: [<80082978>] do_sync_write+0xde/0x124 > 85a0fb90: [<80082b81>] vfs_write+0x1c3/0x23d > 85a0fbc8: [<80082ccc>] sys_write+0x51/0x80 > 85a0fbf0: [<80022bda>] handle_syscall+0x11a/0x138 > 85a0fc6c: [<80033b68>] handle_trap+0x31/0x12d > 85a0fc94: [<80034192>] userspace+0x1c7/0x21e > 85a0fcf0: [<80022808>] fork_handler+0xef/0xff > 85a0fd1c: [<8039a828>] __restore+0x0/0x8 > 85a0fd5c: [<8039aa81>] kill+0x11/0x20 -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
