Hi, I'm bridging a tun device to give my qemu virtual machines network access. My script brings up tun0 and addif's it to br0. When I close qemu the kernel complains severely. If I'm running with an smp kernel my machine hard freezes. Fedora Core 2, fully updated, i686 Linux version 2.6.8-1.521 dmesg log attached. anyone know if this is likely due to Fedora additions to the kernel? Or should I be posting this upstream. (I should really test it with a vanilla kernel of course...) Or is it already know about and I've just missed the reports. John. -- GPG: B89C D450 5B2C 74D8 58FB A360 9B06 B5C2 26F0 3047 WEB: http://johnleach.co.uk
Universal TUN/TAP device driver 1.5 (C)1999-2002 Maxim Krasnyansky divert: allocating divert_blk for tun0 device tun0 entered promiscuous mode br0: port 2(tun0) entering learning state br0: port 2(tun0) entering disabled state Debug: sleeping function called from invalid context at include/asm/semaphore.h:119 in_atomic():1[expected: 0], irqs_disabled():0 [<0211b765>] __might_sleep+0x82/0x8c [<021a5eea>] sysfs_hash_and_remove+0x1c/0x1ce [<42a2df32>] br_sysfs_removeif+0x18/0x20 [bridge] [<42a2a908>] br_del_if+0x23/0x10b [bridge] [<42a2bb27>] br_device_event+0x11f/0x17c [bridge] [<0212ccf5>] notifier_call_chain+0x17/0x30 [<022a0550>] unregister_netdevice+0x178/0x2e9 [<42ade902>] tun_chr_close+0x55/0x5f [tun] [<0216190e>] __fput+0x3f/0xd8 [<0216012f>] filp_close+0x59/0x5f [<021206d1>] put_files_struct+0x56/0xbf [<021218ad>] do_exit+0x3f6/0x767 [<02121ddf>] sys_exit_group+0x0/0xd bad: scheduling while atomic! [<022f3d9d>] schedule+0x2d/0x5a0 [<0210659e>] dump_stack+0x11/0x13 [<0211b765>] __might_sleep+0x82/0x8c [<021a5ef5>] sysfs_hash_and_remove+0x27/0x1ce [<42a2df32>] br_sysfs_removeif+0x18/0x20 [bridge] [<42a2a908>] br_del_if+0x23/0x10b [bridge] [<42a2bb27>] br_device_event+0x11f/0x17c [bridge] [<0212ccf5>] notifier_call_chain+0x17/0x30 [<022a0550>] unregister_netdevice+0x178/0x2e9 [<42ade902>] tun_chr_close+0x55/0x5f [tun] [<0216190e>] __fput+0x3f/0xd8 [<0216012f>] filp_close+0x59/0x5f [<021206d1>] put_files_struct+0x56/0xbf [<021218ad>] do_exit+0x3f6/0x767 [<02121ddf>] sys_exit_group+0x0/0xd device tun0 left promiscuous mode net/bridge/br_if.c:105: spin_lock(net/bridge/br_if.c:33d38280) already locked by net/bridge/br_notify.c/44 br0: port 2(tun0) entering disabled state net/bridge/br_notify.c:82: spin_unlock(net/bridge/br_if.c:33d38280) not locked divert: freeing divert_blk for tun0
Attachment:
signature.asc
Description: This is a digitally signed message part
