Messages in this thread | | | Subject | Re: 2.6.8.1-mm1 | From | Nathan Lynch <> | Date | Wed, 18 Aug 2004 12:36:52 -0500 |
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On Tue, 2004-08-17 at 20:04, Rusty Russell wrote: > Name: Don't Sleep After We're Out Of Task List > Status: Booted on 2.6.8.1-mm1 > Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (authored) > Version: -mm
I tried this and I see might_sleep warnings from proc_pid_flush during boot and during the test:
Debug: sleeping function called from invalid context at fs/proc/base.c:1532 in_atomic():1, irqs_disabled():0 [<c0108317>] dump_stack+0x17/0x20 [<c0123196>] __might_sleep+0xb6/0xe0 [<c01a2985>] proc_pid_flush+0x15/0x40 [<c0128066>] release_task+0x1a6/0x270 [<c011f49c>] finish_task_switch+0xac/0xe0 [<c041acea>] schedule+0x53a/0xa70 [<c041be29>] schedule_timeout+0xb9/0xc0 [<c0180ebe>] do_select+0x18e/0x2f0 [<c01812e3>] sys_select+0x293/0x4e0 [<c010746f>] syscall_call+0x7/0xb
And I still hit the same BUG_ON when running the test:
kernel BUG at kernel/sched.c:4038! invalid operand: 0000 [#1] PREEMPT SMP Modules linked in: CPU: 0 EIP: 0060:[<c0122b2b>] Not tainted VLI EFLAGS: 00010202 (2.6.8.1-mm1) EIP is at migration_call+0x1bb/0x300 eax: 00000001 ebx: c1410f60 ecx: 00000000 edx: dea71ec8 esi: dea71000 edi: 00000001 ebp: dea71ee0 esp: dea71eb8 ds: 007b es: 007b ss: 0068 Process bash (pid: 2956, threadinfo=dea71000 task=de4f0210) Stack: dea71ed4 de4f07f0 de4f07f0 dea71ed4 00000296 dea71ee4 00000296 c04a5b78 00000001 00000006 dea71ef4 c01368c8 dea71000 00000001 c04a7a40 dea71f2c c014054c c01a8d19 c04f5700 00000000 dea71000 00000001 00000001 000000ff Call Trace: [<c01082ea>] show_stack+0x7a/0x90 [<c0108472>] show_registers+0x152/0x1c0 [<c01086a0>] die+0x110/0x200 [<c0108b99>] do_invalid_op+0xe9/0xf0 [<c0107ed9>] error_code+0x2d/0x38 [<c01368c8>] notifier_call_chain+0x28/0x50 [<c014054c>] cpu_down+0x11c/0x230 [<c02a5d38>] store_online+0x38/0x40 [<c02a30b7>] sysdev_store+0x37/0x40 [<c01a8b2e>] flush_write_buffer+0x2e/0x40 [<c01a8b8a>] sysfs_write_file+0x4a/0x60 [<c016b302>] vfs_write+0xa2/0x100 [<c016b411>] sys_write+0x41/0x70 [<c010746f>] syscall_call+0x7/0xb Code: 0b d0 0f 0f 54 43 c0 eb 8e c7 04 24 0f 34 43 c0 b8 64 2a 12 c0 89 44 24 04 e8 e2 3f 00 00 0f 0b 89 00 22 d4 42 c0 e9 4a ff ff ff <0f> 0b c6 0f 0f 54 43 c0 e9 2c ff ff ff e8 e3 86 2f 00 e9 17 ff
Anything else I can try?
Nathan
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