Blaisorblade wrote:
On Monday 24 October 2005 12:08, Antonio Mancina wrote:
Add the stderr=1 option and post the output result... also, you may want first
to try some later UML (2.6.13.4-bs4 being the latest one).
First of all, many thanks for your reply :)
This is my output:
[42949372.960000] Linux version 2.6.12 ([EMAIL PROTECTED])
(gcc version 4.0.0 20050519 (Red Hat 4.0.0-8)) #1 Sun Oct 23 20:43:05
CEST 2005
[42949372.960000] Built 1 zonelists
[42949372.960000] Kernel command line: ubd0=root_fs stderr=1 root=98:0
[42949372.960000] PID hash table entries: 256 (order: 8, 4096 bytes)
[42949372.960000] Dentry cache hash table entries: 8192 (order: 3, 32768
bytes)
[42949372.960000] Inode-cache hash table entries: 4096 (order: 2, 16384
bytes)
[42949372.960000] Memory: 28628k available
[42949373.230000] Mount-cache hash table entries: 512
[42949373.230000] Checking for host processor cmov support...Yes
[42949373.230000] Checking for host processor xmm support...No
[42949373.230000] Checking that ptrace can change system call
numbers...<0>Kernel panic - not syncing: Segfault with no mm
[42949373.230000]
[42949373.230000] EIP: 0073:[<00000000>] CPU: 0 Not tainted ESP:
007b:a0247f20 EFLAGS: 00210246
[42949373.230000] Not tainted
[42949373.230000] EAX: 00000af3 EBX: a001308b ECX: 00000000 EDX: 00000000
[42949373.230000] ESI: 00000af3 EDI: 00000000 EBP: 00000000 DS: 007b ES:
007b
[42949373.230000] a0247a70: [<a003069c>] printk+0x18/0x1c
[42949373.230000] a0247a80: [<a003fff2>] notifier_call_chain+0x1e/0x38
[42949373.230000] a0247aa0: [<a002fc79>] panic+0x59/0x110
[42949373.230000] a0247ab0: [<a00155e3>] change_sig+0x4b/0x60
[42949373.230000] a0247ad0: [<a00176ad>] segv+0x211/0x250
[42949373.230000] a0247b2c: [<a01a6717>] sigemptyset+0x17/0x34
[42949373.230000] a0247b40: [<a0015636>] change_signals+0x3e/0x70
[42949373.230000] a0247b90: [<a0017a43>] segv_handler+0x10b/0x190
[42949373.230000] a0247bd0: [<a001abed>] sig_handler_common_tt+0xbd/0x114
[42949373.230000] a0247be0: [<a001ac2d>] sig_handler_common_tt+0xfd/0x114
[42949373.230000] a0247c10: [<a001308b>] start_ptraced_child+0xc7/0x10c
[42949373.230000] a0247c20: [<a0026fc2>] sig_handler+0x1e/0x3c
[42949373.230000] a0247c3c: [<a001577d>] set_signals+0x79/0x178
[42949373.230000] a0247c68: [<a001308b>] start_ptraced_child+0xc7/0x10c
[42949373.230000] a0247f2c: [<a0025d38>] os_access+0x14/0x34
[42949373.230000] a0247f30: [<a001a28c>] signal_tramp+0x0/0xf0
[42949373.230000] a0247f3c: [<a0007f46>] check_ptrace+0x16/0x3a0
[42949373.230000] a0247f44: [<a001a28c>] signal_tramp+0x0/0xf0
[42949373.230000] a0247f5c: [<a002852f>] arch_check_bugs+0x37/0x70
[42949373.230000] a0247f6c: [<a001a28c>] signal_tramp+0x0/0xf0
[42949373.230000] a0247f7c: [<a0008791>] check_bugs+0xd/0x1c
[42949373.230000] a0247f80: [<a001a28c>] signal_tramp+0x0/0xf0
[42949373.230000] a0247f8c: [<a0002598>] start_kernel+0x14c/0x1a8
[42949373.230000] a0247f94: [<a001a28c>] signal_tramp+0x0/0xf0
[42949373.230000] a0247f9c: [<a0002556>] start_kernel+0x10a/0x1a8
[42949373.230000] a0247fb4: [<a001a28c>] signal_tramp+0x0/0xf0
[42949373.230000] a0247fbc: [<a001995a>] start_kernel_proc+0x42/0x48
[42949373.230000] a0247fc4: [<a0026fa4>] sig_handler+0x0/0x3c
[42949373.230000] a0247fcc: [<a001a2bf>] signal_tramp+0x33/0xf0
[42949373.230000] a0247fdc: [<a01bff3e>] clone+0x6e/0x9c
[42949373.230000]
[42949373.230000]
Also, you will probably need to loop-mount your downloaded root_fs and
fix /etc/inittab to change lines referring to "*getty ttys/1" or "*getty
vc/1" to use tty1, and so on (i.e. convert back the root_fs from DevFS to
non-DevFS); and create /dev/ubd0, ubd1 and so on:
Did it and the output did not change.
Thanks again!
--
Antonio Mancina
PhD Student @ Retis Lab
Scuola Superiore S.Anna - Polo Valdera
Pontedera (PI), Italy
[EMAIL PROTECTED]
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