In an Athlon XP system w. two adaptec adapters:
Adaptec 2930CU SCSI adapter
aic7860: Ultra Single Channel A,
Adaptec 2902/04/10/15/20/30C SCSI adapter>
aic7850: Single Channel A,
I (always) get the same 'scheduling while atomic' error whenever I try to
rmmod the aic7xxx module or try to suspend. I think my configuration
(scripts) try to unload the module on suspend, which brings it down to the
same problem.
Does this trace look familiar? What extra information should I include?
[please CC. me]
This problem exists both for 2.6.0-test5 and 2.6.0-test6, both with pre-empt
enabled. They're on a VIA motherboard w. broken ACPI (pci=noacpi given).
kernel: bad: scheduling while atomic!
kernel: Call Trace:
kernel: [schedule+1414/1424] schedule+0x586/0x590
kernel: [<c011bb86>] schedule+0x586/0x590
kernel: [handle_mm_fault+222/400] handle_mm_fault+0xde/0x190
kernel: [<c01499ae>] handle_mm_fault+0xde/0x190
kernel: [__down+150/272] __down+0x96/0x110
kernel: [<c0108196>] __down+0x96/0x110
kernel: [default_wake_function+0/48] default_wake_function+0x0/0x30
kernel: [<c011bbf0>] default_wake_function+0x0/0x30
kernel: [__down_failed+8/12] __down_failed+0x8/0xc
kernel: [<c01083cc>] __down_failed+0x8/0xc
kernel: [_end+828749580/1069457068] .text.lock.aic7xxx_osm+0x19/0x99
[aic7xxx]
kernel: [<f1a6f860>] .text.lock.aic7xxx_osm+0x19/0x99 [aic7xxx]
kernel: [_end+828757092/1069457068] ahc_linux_exit+0x28/0x82 [aic7xxx]
kernel: [<f1a715b8>] ahc_linux_exit+0x28/0x82 [aic7xxx]
kernel: [sys_delete_module+338/448] sys_delete_module+0x152/0x1c0
kernel: [<c01341a2>] sys_delete_module+0x152/0x1c0
kernel: [do_munmap+339/400] do_munmap+0x153/0x190
kernel: [<c014bb63>] do_munmap+0x153/0x190
kernel: [syscall_call+7/11] syscall_call+0x7/0xb
kernel: [<c010949b>] syscall_call+0x7/0xb
"P. Christeas" <[email protected]> wrote:
>
> I (always) get the same 'scheduling while atomic' error whenever I try to
> rmmod the aic7xxx module or try to suspend.
That's because ahc_linux_exit() takes ahc_list_spinlock then calls
ahc_linux_kill_dv_thread(), which downs a semaphore.