On Wed, 23 May 2007 16:31:54 +1000 David Chinner <dgc@xxxxxxx> wrote: > Saw this when running strace -f on a script on 2.6.21 on ia64: > > BUG: sleeping function called from invalid context at kernel/fork.c:385 > in_atomic():1, irqs_disabled():0 > > Call Trace: > [<a000000100014700>] show_stack+0x80/0xa0 > sp=e00000306e6f7a00 bsp=e00000306e6f0ef8 > [<a000000100014750>] dump_stack+0x30/0x60 > sp=e00000306e6f7bd0 bsp=e00000306e6f0ee0 > [<a0000001000acaf0>] __might_sleep+0x1f0/0x260 > sp=e00000306e6f7bd0 bsp=e00000306e6f0eb8 > [<a0000001000bd2e0>] mmput+0x20/0x220 > sp=e00000306e6f7bd0 bsp=e00000306e6f0e90 > [<a0000001000321e0>] sys_ptrace+0x460/0x1600 > sp=e00000306e6f7bd0 bsp=e00000306e6f0d80 > [<a00000010000bc40>] ia64_ret_from_syscall+0x0/0x20 > sp=e00000306e6f7e30 bsp=e00000306e6f0d80 > [<a000000000010620>] __kernel_syscall_via_break+0x0/0x20 > sp=e00000306e6f8000 bsp=e00000306e6f0d80 > BUG: sleeping function called from invalid context at kernel/fork.c:385 > in_atomic():1, irqs_disabled():0 > > Call Trace: > [<a000000100014700>] show_stack+0x80/0xa0 > sp=e00000306e6f7a00 bsp=e00000306e6f0ef8 > [<a000000100014750>] dump_stack+0x30/0x60 > sp=e00000306e6f7bd0 bsp=e00000306e6f0ee0 > [<a0000001000acaf0>] __might_sleep+0x1f0/0x260 > sp=e00000306e6f7bd0 bsp=e00000306e6f0eb8 > [<a0000001000bd2e0>] mmput+0x20/0x220 > sp=e00000306e6f7bd0 bsp=e00000306e6f0e90 > [<a0000001000321e0>] sys_ptrace+0x460/0x1600 > sp=e00000306e6f7bd0 bsp=e00000306e6f0d80 > [<a00000010000bc40>] ia64_ret_from_syscall+0x0/0x20 > sp=e00000306e6f7e30 bsp=e00000306e6f0d80 > [<a000000000010620>] __kernel_syscall_via_break+0x0/0x20 > sp=e00000306e6f8000 bsp=e00000306e6f0d80 > > I could reproduce it via 'strace -f sleep 1' > I'd say this is specific to ia64. Someone would have spotted it on x86 by now. - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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