If the tmpfs theory were correct, you'd see the tmpfs mount being 100%
full at the point of the panic.
On Mon, Feb 27, 2006 at 03:33:41PM +0100, Marcus Blomenkamp wrote:
> [42949441.660000] userspace - child stopped with signal 18
> [42949446.640000] userspace - child stopped with signal 18
> [42949446.680000] userspace - child stopped with signal 18
> [42949449.880000] userspace - child stopped with signal 18
> [42950121.590000] Kernel panic - not syncing: do_syscall_stub : failed to
> wait for SIGUSR1/SIGTRAP, pid = 28347, n = 28347, errno = 25, status = 0x127f
Something is sending the UML SIGCONT (that's the signal 18 and the
status 0x12). What's the host? Can you try a different version of
the host kernel, especially if this all happened after a host upgrade?
> [42949401.520000] <0>Kernel panic - not syncing: Kernel mode fault at addr
> 0x1e0, ip 0x0
> [42949409.990000]
> [42949409.990000] EIP: 0000:[<00000000>] CPU: 0 Not tainted EFLAGS: 00000000
> [42949409.990000] Not tainted
> [42949409.990000] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000
> [42949409.990000] ESI: 00000000 EDI: 00000000 EBP: 00000000 DS: 0000 ES: 0000
> [42949409.990000] 0822b260: [<0807cf5c>] notifier_call_chain+0x1c/0x40
> [42949409.990000] 0822b27c: [<0806f07b>] panic+0x4b/0xf0
> [42949409.990000] 0822b290: [<08059d24>] segv+0x264/0x290
> [42949409.990000] 0822b354: [<08059fc0>] segv_handler+0x50/0x60
> [42949409.990000] 0822b370: [<0805ce78>] sig_handler_common_skas+0x78/0xd0
> [42949409.990000] 0822b390: [<080677cf>] sig_handler+0xf/0x20
> [42949409.990000] 0822b39c: [<081a8d68>] __restore+0x0/0x8
> [42949409.990000] 0822b3dc: [<08196d63>] fn_hash_lookup+0x23/0xb0
> [42949409.990000] 0822b438: [<08057f32>] enable_mask+0x32/0x40
> [42949409.990000] 0822b44c: [<08057f5d>] get_signals+0x1d/0x40
> [42949409.990000] 0822b484: [<08057f32>] enable_mask+0x32/0x40
> [42949409.990000] 0822b498: [<08057f5d>] get_signals+0x1d/0x40
> [42949409.990000] 0822b4b4: [<0805fe78>] uml_net_start_xmit+0x68/0x110
This one looks more real, but given the first panic, I'd like to see
if the host kernel is causing this one too.
Jeff
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