2.6.21.5-rt15: BUG: scheduling with irqs disabled
From: Fernando Lopez-Lezcano
Date: Mon Jun 18 2007 - 20:39:21 EST
Hi Ingo, I'm seeing this on 2.6.21.5-rt14 and 2.6.21.5-rt15, this
problem did not happen in 2.6.21.3-rt9 (last I checked on this
hardware). The computer is an athlon x2 and eth0 is "alias eth0 skge",
the BUGs trigger on network activity (but not a constant stream of
them)...
BUG: scheduling with irqs disabled: IRQ-20/0x00000000/1246
caller is wait_for_completion+0x65/0x9b
[<c0105f44>] dump_trace+0x64/0x105
[<c0105ffd>] show_trace_log_lvl+0x18/0x2c
[<c010660a>] show_trace+0xf/0x11
[<c010668b>] dump_stack+0x12/0x14
[<c032ba36>] schedule+0x86/0xfa
[<c032bb0f>] wait_for_completion+0x65/0x9b
[<c0125f24>] set_cpus_allowed+0x71/0x8f
[<c012f867>] do_softirq_from_hardirq+0xbd/0xda
[<c015a336>] do_irqd+0x1ff/0x24d
[<c013be5c>] kthread+0xb0/0xd8
[<c0105b7b>] kernel_thread_helper+0x7/0x10
=======================
[root@cmn34 ~]# cat /proc/interrupts
CPU0 CPU1
0: 251 1 IO-APIC-edge timer
1: 0 2 IO-APIC-edge i8042
6: 0 6 IO-APIC-edge floppy
7: 1 0 IO-APIC-edge parport0
8: 0 1 IO-APIC-edge rtc
9: 0 0 IO-APIC-fasteoi acpi
12: 0 4 IO-APIC-edge i8042
14: 0 3724 IO-APIC-edge ide0
16: 7591 5688 IO-APIC-fasteoi ohci_hcd:usb1, libata
17: 1 238 IO-APIC-fasteoi ohci_hcd:usb2, NVidia
CK8S
18: 0 3 IO-APIC-fasteoi ehci_hcd:usb3
19: 0 0 IO-APIC-fasteoi libata
20: 0 3028 IO-APIC-fasteoi eth0
21: 0 2 IO-APIC-fasteoi ohci1394, ICE1712
22: 17253 5916 IO-APIC-fasteoi radeon@pci:0000:01:00.0
NMI: 0 0
LOC: 32953 36858
ERR: 1
MIS: 0
-- Fernando
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