Re: 2.6.9 rc2 freezing

[Jeff Garzik <jgarzik@pobox.com>]

Zilvinas Valinskas wrote:
> [1.] One line summary of the problem: 
>  Applied patch-2.6.9.bz2 on top of linux 2.6.8 tree, reboot - 
>  then suddenly laptop frozes.
>  
> [2.] Full description of the problem/report:
>  It is the same .config used to compile 2.6.9 rc1 and 2.6.9 rc2 
>  (http://www.gemtek.lt/~zilvinas/oops/ for kern.log and .config).
>  Laptop booted as usual, logged in KDE and started up evolution -
>  mouse froze, keyboard seemed dead - although sysrq-s, sysrq-u & 
>  sysrq-b worked just fine. After reboot I found a lot of messages
>  repeated like :
> 
> Sep 13 18:51:24 evo800 kernel: Warning: kfree_skb on hard IRQ 000000d8
> Sep 13 18:51:24 evo800 kernel: bad: scheduling while atomic!
> Sep 13 18:51:24 evo800 kernel:  [schedule+1208/1213] schedule+0x4b8/0x4bd
> Sep 13 18:51:24 evo800 kernel:  [sys_time+22/80] sys_time+0x16/0x50
> Sep 13 18:51:24 evo800 kernel:  [work_resched+5/22] work_resched+0x5/0x16
> 
> or 
> 
> Sep 13 18:51:24 evo800 kernel: Warning: kfree_skb on hard IRQ 000000d8
> Sep 13 18:51:24 evo800 kernel: bad: scheduling while atomic!
> Sep 13 18:51:24 evo800 kernel:  [schedule+1208/1213] schedule+0x4b8/0x4bd
> Sep 13 18:51:24 evo800 kernel:  [schedule_timeout+96/179] schedule_timeout+0x60/0xb3
> Sep 13 18:51:24 evo800 kernel:  [__get_free_pages+31/59] __get_free_pages+0x1f/0x3b
> Sep 13 18:51:24 evo800 kernel:  [process_timeout+0/5] process_timeout+0x0/0x5
> Sep 13 18:51:24 evo800 kernel:  [do_select+394/698] do_select+0x18a/0x2ba
> Sep 13 18:51:24 evo800 kernel:  [__pollwait+0/192] __pollwait+0x0/0xc0
> Sep 13 18:51:24 evo800 kernel:  [print_context_stack+35/93] print_context_stack+0x23/0x5d
> Sep 13 18:51:24 evo800 kernel:  [sys_select+670/1176] sys_select+0x29e/0x498
> Sep 13 18:51:24 evo800 kernel:  [sys_time+22/80] sys_time+0x16/0x50
> Sep 13 18:51:24 evo800 kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
>  
> 
> [3.] Keywords (i.e., modules, networking, kernel):
>  Modules Loaded         nfs esp4 nfsd exportfs lockd sunrpc nsc_ircc
>  ipt_state iptable_filter iptable_nat crypto_null microcode ehci_hcd
>  ohci_hcd floppy irtty_sir sir_dev irda crc_ccitt 8250_pnp khazad
>  twofish sha512 sha256 sha1 serpent md5 md4 des deflate zlib_deflate
>  zlib_inflate cast6 cast5 blowfish arc4 aes_i586 xfrm_user
>  ip_conntrack_irc ip_conntrack_ftp ip_conntrack ip_tables ide_cd cdrom
>  8250 serial_core snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss
>  snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi
>  snd_seq_device snd soundcore yenta_socket radeon intel_agp agpgart

I'm totally blind, because I don't see your network driver in that big 
list of modules.

Your network driver should probably be doing dev_kfree_skb_any() 
somewhere, but isn't.

	Jeff