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SubjectRe: sleeping function call in 2.5.65-bk
Thomas Molina wrote:
> I did a bk pull about 0500 CST this morning. Five minutes after booting
> into this version of the kernel I get an endless string of the following
> until reboot. The type of activity going on at the time doesn't seem to
> affect whether I get it or not. I've tried everything from completely
> idle user-wise to compeletely loaded (load average >= 2) with both
> interactive and background tasks active.
>
> Mar 23 09:53:45 dad kernel: Debug: sleeping function called from illegal
> context at mm/slab.c:1723
> Mar 23 09:53:45 dad kernel: Call Trace:
> Mar 23 09:53:45 dad kernel: [<c011d7bf>] __might_sleep+0x4f/0x90
> Mar 23 09:53:45 dad kernel: [<c0149611>] kmalloc+0x1a1/0x1c0
> Mar 23 09:53:45 dad kernel: [<c0233985>] accel_cursor+0xd5/0x300
> Mar 23 09:53:45 dad kernel: [<c02158b6>] e100_get_link_state+0x36/0xa0
> Mar 23 09:53:45 dad kernel: [<c0233da5>] fb_vbl_handler+0x85/0xa0
> Mar 23 09:53:45 dad kernel: [<c012a9d6>] update_process_times+0x46/0x50
> Mar 23 09:53:45 dad kernel: [<c0232400>] cursor_timer_handler+0x0/0x40
> Mar 23 09:53:45 dad kernel: [<c0232421>] cursor_timer_handler+0x21/0x40
> Mar 23 09:53:45 dad kernel: [<c012ab32>] run_timer_softirq+0x132/0x3c0
> Mar 23 09:53:45 dad kernel: [<c022c390>] ide_dma_intr+0x0/0xc0
> Mar 23 09:53:45 dad kernel: [<c0125de1>] do_softirq+0xa1/0xb0
> Mar 23 09:53:45 dad kernel: [<c010bdec>] do_IRQ+0x1fc/0x320
> Mar 23 09:53:45 dad kernel: [<c0116c01>] apm_bios_call_simple+0x61/0xa0
> Mar 23 09:53:45 dad kernel: [<c0109fdc>] common_interrupt+0x18/0x20
> Mar 23 09:53:45 dad kernel: [<c0106fe7>] default_idle+0x27/0x30
> Mar 23 09:53:45 dad kernel: [<c0116ef2>] apm_cpu_idle+0xc2/0x150
> Mar 23 09:53:45 dad kernel: [<c0116e30>] apm_cpu_idle+0x0/0x150
> Mar 23 09:53:45 dad kernel: [<c0106fc0>] default_idle+0x0/0x30
> Mar 23 09:53:45 dad kernel: [<c0107061>] cpu_idle+0x31/0x40
> Mar 23 09:53:45 dad kernel: [<c0105000>] rest_init+0x0/0x30
> Mar 23 09:53:45 dad kernel:

The fbcon driver is calling kmalloc in interrupt context without GFP_ATOMIC.

--
Brian Gerst

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