Le dimanche 04 décembre 2005 à 17:22 +0100, Blaisorblade a écrit :
> Host kernel means the "normal kernel". The UML binary is called "guest
> kernel".
>
I know. I'm very tired !
>
> Add stderr=1 to get more messages, then we'll see which is the cause.
> Additionally, reduce the amount of memory since it's not able to use so much
> in your system (probably because of Exec shield or something like that).
>
./vmlinux stderr=1 mem=64M ubd0=/dev/myvg/uml_rooubd1=/dev/myvg/uml_swap
eth0=tuntap,tap0
Checking PROT_EXEC mmap in /tmp...OK
tracing thread pid = 4968
Linux version 2.6.12 ([EMAIL PROTECTED]) (version gcc 3.3.5 (Debian
1:3.3.5-13)) #2 Sat Dec 3 09:43:46 CET 2005
Built 1 zonelists
Kernel command line: stderr=1 mem=64M ubd0=/dev/myvg/uml_root
ubd1=/dev/myvg/uml_swap eth0=tuntap,tap0 root=98:0
PID hash table entries: 512 (order: 9, 8192 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 60984k available
Security Framework v1.0.0 initialized
SELinux: Disabled at boot.
Mount-cache hash table entries: 512
Checking for host processor cmov support...Yes
Checking for host processor xmm support...No
Checking that ptrace can change system call numbers...<0>Kernel panic -
not syncing: check_ptrace: PTRACE_SETOPTIONS failed, errno = 3
Kernel panic - not syncing: Segfault with no mm
EIP: 0073:[<a002f285>] CPU: 0 Not tainted ESP: 007b:a0203ee4 EFLAGS:
00210246
Not tainted
EAX: 00000000 EBX: a020521c ECX: a01d7aad EDX: a0204f44
ESI: a02e09a0 EDI: 00000000 EBP: 00000000 DS: 007b ES: 007b
a0203a38: [<a0043aad>] notifier_call_chain+0x2d/0x50
a0203a48: [<a00d7d96>] bust_spinlocks+0x46/0x50
a0203a58: [<a0033b41>] panic+0x71/0x120
a0203a78: [<a001a25e>] segv+0x21e/0x280
a0203ad4: [<a016e904>] sigemptyset+0x24/0x40
a0203ae8: [<a0018125>] change_signals+0x65/0x90
a0203b68: [<a001a5e6>] segv_handler+0xe6/0xf0
a0203b78: [<a002f285>] show_regs+0x25/0x150
a0203b88: [<a001817f>] unblock_signals+0xf/0x20
a0203b98: [<a001dcab>] sig_handler_common_tt+0xbb/0x150
a0203bf8: [<a002b707>] sig_handler+0x17/0x20
a0203c08: [<a016e7d8>] __restore+0x0/0x8
a0203c48: [<a002f285>] show_regs+0x25/0x150
a0203f00: [<a001adab>] panic_exit+0x2b/0x50
a0203f10: [<a0043aad>] notifier_call_chain+0x2d/0x50
a0203f20: [<a00d7d96>] bust_spinlocks+0x46/0x50
a0203f24: [<a001d360>] signal_tramp+0x0/0x110
a0203f30: [<a0033b41>] panic+0x71/0x120
a0203f44: [<a001d360>] signal_tramp+0x0/0x110
a0203f4c: [<a001d360>] signal_tramp+0x0/0x110
a0203f50: [<a0008de6>] check_ptrace+0x1b6/0x1c0
a0203f6c: [<a001d360>] signal_tramp+0x0/0x110
a0203f70: [<a00a9650>] proc_mkdir+0x20/0x30
a0203f74: [<a001d360>] signal_tramp+0x0/0x110
a0203f80: [<a00093fd>] check_bugs+0xd/0x20
a0203f90: [<a00025f3>] start_kernel+0x173/0x1c0
a0203fa4: [<a0002160>] unknown_bootoption+0x0/0x200
a0203fb0: [<a001c857>] start_kernel_proc+0x37/0x50
a0203fc0: [<a001d422>] signal_tramp+0xc2/0x110
a0203fc8: [<a002b6f0>] sig_handler+0x0/0x20
a0203fe0: [<a0186d1a>] clone+0x6a/0x80
a0203fe4: [<a001c820>] start_kernel_proc+0x0/0x50
actually_do_remove : couldn't open directory '/root/.uml/xZGRoB', errno
= 2
> What about 2.6.13 or 2.6.14 (with -bs patches from my homepage)? 2.6.12 is
> old, 2.6.14 for somebody (and only somebody) is problematic,
>
Same problem with 2.6.14.
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