Re: bugs in __schedule()

Here is the all output I have:

# ifconfig mgt0 10.0.51.27
BUG: scheduling while atomic: exe/0x00000101/752
caller is schedule+0x4c/0xe4
Call trace:
[c02dc4dc] __schedule+0x654/0x788
[c02dc6f4] schedule+0x4c/0xe4
[c02dbe24] __compat_down+0xc8/0x12c
[c0226b60] mv_sw_read_reg+0x178/0x17c
[c02296fc] mvSwIntrTasklet+0x128/0x744
[c0020afc] tasklet_action+0x7c/0xec
[c00204f4] ___do_softirq+0x80/0x11c
[c00205cc] __do_softirq+0x3c/0x6c
[c00206a4] do_softirq+0x60/0x68
[c00207a8] irq_exit+0x6c/0x94
[c0005e1c] do_IRQ+0x88/0xa4
[c0004b70] ret_from_except+0x0/0x18
[c000680c] __delay+0xc/0x14
[c0226598] mv_sw_read_smi_reg+0x84/0x1ac
[c0226adc] mv_sw_read_reg+0xf4/0x17c


Satyam Sharma wrote:

Hi Gavin,

On 6/26/07, gshan <[email protected]> wrote:

Anybody has suggestions on this crash?

[c02dc4dc] __schedule+0x654/0x788
 [c02dc6f4] schedule+0x4c/0xe4
 [c02dbe24] __compat_down+0xc8/0x12c
 [c0226b60] mv_sw_read_reg+0x178/0x17c
 [c02296fc] mvSwIntrTasklet+0x128/0x744
 [c0020afc] tasklet_action+0x7c/0xec
 [c00204f4] ___do_softirq+0x80/0x11c
 [c00205cc] __do_softirq+0x3c/0x6c
 [c00206a4] do_softirq+0x60/0x68
 [c00207a8] irq_exit+0x6c/0x94
 [c0005e1c] do_IRQ+0x88/0xa4
 [c0004b70] ret_from_except+0x0/0x18
 [c000680c] __delay+0xc/0x14
 [c0226598] mv_sw_read_smi_reg+0x84/0x1ac

I bet you got more output than that, didn't you? :-)

Now I know this must be a "scheduling while interrupts disabled",
but why not post the whole error message?

[ Reminds me of the other thread where someone thought just mentioning
the EIP without any backtrace / other messages was enough to resolve a

boot-time panic. I agree they're all magicians on this list, but Gods they're

not ... ]

BTW I don't see "mvSwIntrTasklet" anywhere on -rc6. Is this a -mm kernel?

Cheers,
Satyam

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