Hi!
I got
Jun 21 10:30:20 amd kernel: ------------[ cut here ]------------
Jun 21 10:30:20 amd kernel: kernel BUG at fs/open.c:935!
Jun 21 10:30:20 amd kernel: invalid operand: 0000 [#1]
Jun 21 10:30:20 amd kernel: Modules linked in: ipw2100
Jun 21 10:30:20 amd kernel: CPU: 0
Jun 21 10:30:20 amd kernel: EIP: 0060:[page_referenced+39/160] Not tainted VLI
Jun 21 10:30:20 amd kernel: EFLAGS: 00010286 (2.6.12-mm1)
Jun 21 10:30:20 amd kernel: EIP is at fd_install+0x27/0x40
Jun 21 10:30:20 amd kernel: eax: f7268e00 ebx: 00000080 ecx: f61a9800 edx: f6106400
Jun 21 10:30:20 amd kernel: esi: f6106400 edi: f61a9800 ebp: 0000000c esp: f66d9f7c
Jun 21 10:30:20 amd kernel: ds: 007b es: 007b ss: 0068
Jun 21 10:30:20 amd kernel: Process kded (pid: 2056, threadinfo=f66d8000 task=f672ca80)
Jun 21 10:30:20 amd kernel: Stack: 00000080 c0165fd6 00000080 ffffffea 0000000c c0166300 00000000 f6106400
Jun 21 10:30:20 amd kernel: fffffff7 c01664b0 f6106400 0000000c 00000080 b6e84b7c f66d8000 c0102ea9
Jun 21 10:30:20 amd kernel: 0000000c 00000000 00000080 00000080 b6e84b7c bf9361f8 000000dd 0000007b
Jun 21 10:30:20 amd kernel: Call Trace:
Jun 21 10:30:20 amd kernel: [blkdev_get+38/160] dupfd+0x46/0x60
Jun 21 10:30:20 amd kernel: [lookup_bdev+48/144] do_fcntl+0x80/0x150
Jun 21 10:30:20 amd kernel: [.text.lock.block_dev+153/185] sys_fcntl64+0x80/0x90
Jun 21 10:30:20 amd kernel: [do_signal+57/288] syscall_call+0x7/0xb
Jun 21 10:30:20 amd kernel: Code: 00 00 00 00 53 89 c3 b8 00 e0 ff ff 21 e0 8b 00 8b 80 54 04 00 00 8b 48 04 8b 41 0c 8b 04 98 85 c0 75 08 8b 41 0c 89 14 98 5b c3 <0f> 0b a7 03 3c be 52 c0 eb ee eb 0d 90 90 90 90 90 90 90 90 90
Jun 21 10:31:54 amd pam_limits[1559]: wrong limit value 'unlimited'
..while doing nothing particulary interesting. Its:
void fastcall fd_install(unsigned int fd, struct file * file)
{
struct files_struct *files = current->files;
struct fdtable *fdt;
spin_lock(&files->file_lock);
fdt = files_fdtable(files);
if (unlikely(fdt->fd[fd] != NULL))
BUG();
~~~~~~~~~~~~~~~~~~~~~~
rcu_assign_pointer(fdt->fd[fd], file);
spin_unlock(&files->file_lock);
}
This bug. (Is there any particular reason why the code does not use
BUG_ON())?
Pavel
--
teflon -- maybe it is a trademark, but it should not be.
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