Re: [BUG] Sleeping function called from invalid context (2.6.18.6)

2007-01-20 Thread Chris Rankin
This is for a 2.6.18.6 UP-preempt kernel compiled with gcc-4.1.1, BTW.

Cheers,
Chris




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[BUG] Sleeping function called from invalid context (2.6.18.6)

2007-01-20 Thread Chris Rankin
Hi,

I have been testing my wireless zd1211rw driver with kismet, but have noticed 
my logs filling up
with these messages instead:

BUG: sleeping function called from invalid context at kernel/mutex.c:86
in_atomic():0, irqs_disabled():1
 [] mutex_lock+0x12/0x1a
 [] netdev_run_todo+0x10/0x1f1
 [] dev_ioctl+0x465/0x497
 [] d_rehash+0x47/0x78
 [] sock_attach_fd+0x6c/0xcb
 [] sock_ioctl+0x0/0x1b3
 [] do_ioctl+0x1c/0x5d
 [] vfs_ioctl+0x241/0x254
 [] sys_ioctl+0x2c/0x43
 [] syscall_call+0x7/0xb

According to the comment in linux/net/core/dev.c

 * 2) Since we run with the RTNL semaphore not held, we can sleep
 *safely in order to wait for the netdev refcnt to drop to zero.

Well, apparently we can't sleep safely after all because IRQs have been 
disabled.

Cheers,
Chris






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