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https://bugzilla.novell.com/show_bug.cgi?id=332048#c5





--- Comment #5 from joerg reisenweber <reisenweber@xxxxxx>  2007-10-16 05:45:38 
MST ---
now i reproduced 2 times: first was so fast i still was on X console. Second i
had to wait 1/2h and then got
kernel: PANIC - not syncing: for safety
as the *only* msg at console10, besides the blinking LEDs.
now starting a third try...
~30min:
---------------------------------------------------------------------------
[[[ some SFW2-INext-drop-dflt standard firewall trace log. Next first line: ]]] 
qinpos = 65, SCB index = 3
Kernel panic - not syncing: Loop 1

BUG: scheduling while atomic: beagled/ox10010000/4560
 [<c02c362e>] __sched_text_start+0x5e/0x7c5
 [<c011f2fc>] __cond_resched+0x18/0x29
 [<c02c3dfb>] cond_resched+0x26/0x31
 [<c0136c19>] down_read+0x08/0x17
 [<c012eb07>] __blocking_notifier_call_chain+0x1q/0x47
 [<c01ebc38>] bit_cursor+0x0/0x498
 [<c012eb4b>] blocking_notifier_call_chain+0x17/0x1a
 [<c01eac73>] fbcon_blank+0x17/0x1e7
 [<c022f2df>] lf+0x20/0x3d
 [<c0232fcb>] vt_console_print+0x0/0x226
 [<c0123d45>] __call_console_drivers+0x4f/0x5b
 [<c012408e>] release_console_sem+0x186/0x19f
 [<c0123f06>] wake_up_klogd+0x33/0x35
 [<c0158b7f>] fblockable_page_cache_readahead+0x4x/0x9f
 [<c012b904>] lock_timer_base+0x19/0x35
 [<c012ba18>] __mod_timer+0x9a/0xa4
 [<c0230b47>] do_unblank_screen+0xca/0x111
 [<c01d17d0>] ust_spinlocks+0x14/0x24
 [<c0123c0c>] panic+0x48/0xf8
 [<dcf4cac1>] ahc_search_qinfifo+0x2b0/0x775 [aic7xxx]
 [<dcf4d98e>] ahc_freezedevq+0x7f/0x8f [aic7xxx]
 [<dcf4fbe5>] ahc_handle_seqint+0x1a1/0x23e0 [aic7xxx]
 [<c016fc81>] do_sync_read+0xc7/0x10a
 [<dcf0689c>] scsi_end_request+0xa1/0xab [scsi_mod]
 [<c01341b9>] autoremove_wake_function+0x0/0x33
 [<dcf5aff0>] ahc_linux_isr+0x184/0x1b0 [aic7xxx]
 [<c014f2c7>] handle_IRQ_event+0x23/0x51
 [<c01506c9>] handle_level_irq+0xb9/0xc8
 [<c0107479>] do_IRQ+0x79/0x90
 [<c0105e73>] common_interrupt+0x23/0x30
 [<c02c0000>] unix_ioctl+0x75/0x95
 =======================
Oct 16 12:38:40 andromeda kernel: qinpos = 65, SCB index = 3
Oct 16 12:38:40 andromeda kernel: 
Oct 16 12:38:40 andromeda kernel: BUG: scheduling while atomic:
beagled/ox10010000/4560
Oct 16 12:38:40 andromeda kernel:  [<c02c362e>] __sched_text_start+0x5e/0x7c5
Oct 16 12:38:40 andromeda kernel:  [<c011f2fc>] __cond_resched+0x18/0x29
Oct 16 12:38:40 andromeda kernel:  [<c02c3dfb>] cond_resched+0x26/0x31
Oct 16 12:38:40 andromeda kernel:  [<c0136c19>] down_read+0x08/0x17
Oct 16 12:38:40 andromeda kernel:  [<c012eb07>]
__blocking_notifier_call_chain+0x1q/0x47
Oct 16 12:38:40 andromeda kernel:  [<c01ebc38>] bit_cursor+0x0/0x498
Oct 16 12:38:40 andromeda kernel:  [<c012eb4b>]
blocking_notifier_call_chain+0x17/0x1a
[[[ stalls here. Above is last line on bottom of screen]]]
------------------------------------------------------------------

obviously this is quite a different kernel panic log than the one i had before.
Hope it will help to trace the BUG anyway.

ps: (dunno if this is of any interest. 2 blocked tasks:)
SysReq: Show Blocked State
  task
syslog-ng
 call-trace:
    mod_timer
    .... *)
smartd
 call-trace:
    scsi_request_fn  
    blk_plug_device
    cfg_set_request
    wait_for_completion
    default_wake_funktion
    ....  *)give me a means to copy&paste the screen, if you like more of this
console info (i might use a serial console and minicom, if you tell me to do
so, and how to do so). tired of copying... 


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