Re: [patch] voluntary-preempt-2.6.8-rc2-L2, preemptable hardirqs

Lee Revell
2004-07-28T01:57:34Z

On Tue, 2004-07-27 at 12:27, Ingo Molnar wrote:
> i've uploaded -L2:
>
> http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8-rc2-L2
>
Some more results:

I can no longer trigger XRUNs with bonnie, so I switched to iozone. Here is
what I got:

ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c015deff>] do_poll+0x5f/0xc0
[<c015e091>] sys_poll+0x131/0x220
[<c0106047>] syscall_call+0x7/0xb
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a197>] shrink_caches+0x57/0x60
[<c013a238>] try_to_free_pages+0x98/0x170
[<c0132707>] __alloc_pages+0x137/0x340
[<c01302c5>] generic_file_aio_write_nolock+0x355/0xb80
[<c0130bd2>] generic_file_aio_write+0x62/0x90
[<c01a9458>] ext3_file_write+0x28/0xc0
[<c014b01a>] do_sync_write+0x6a/0xa0
[<c014b10c>] vfs_write+0xbc/0x110
[<c014b1de>] sys_write+0x2e/0x50
[<c0106047>] syscall_call+0x7/0xb
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a197>] shrink_caches+0x57/0x60
[<c013a238>] try_to_free_pages+0x98/0x170
[<c0132707>] __alloc_pages+0x137/0x340
[<c01302c5>] generic_file_aio_write_nolock+0x355/0xb80
[<c0130bd2>] generic_file_aio_write+0x62/0x90
[<c01a9458>] ext3_file_write+0x28/0xc0
[<c014b01a>] do_sync_write+0x6a/0xa0
[<c014b10c>] vfs_write+0xbc/0x110
[<c014b1de>] sys_write+0x2e/0x50
[<c0106047>] syscall_call+0x7/0xb
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a197>] shrink_caches+0x57/0x60
[<c013a238>] try_to_free_pages+0x98/0x170
[<c0132707>] __alloc_pages+0x137/0x340
[<c01302c5>] generic_file_aio_write_nolock+0x355/0xb80
[<c0130bd2>] generic_file_aio_write+0x62/0x90
[<c01a9458>] ext3_file_write+0x28/0xc0
[<c014b01a>] do_sync_write+0x6a/0xa0
[<c014b10c>] vfs_write+0xbc/0x110
[<c014b1de>] sys_write+0x2e/0x50
[<c0106047>] syscall_call+0x7/0xb
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10
ALSA /home/rlrevell/cvs/alsa/alsa-driver/alsa-kernel/core/pcm_lib.c:139: XRUN: pcmC0D2c
[<c01066a7>] dump_stack+0x17/0x20
[<de93654b>] snd_pcm_period_elapsed+0x27b/0x3e0 [snd_pcm]
[<de956211>] snd_emu10k1_interrupt+0xd1/0x3c0 [snd_emu10k1]
[<c01078c8>] handle_IRQ_event+0x38/0x80
[<c0107e5d>] do_IRQ+0xbd/0x1a0
[<c0106268>] common_interrupt+0x18/0x20
[<c0146751>] add_to_swap+0x21/0xc0
[<c0139426>] shrink_list+0x156/0x4b0
[<c01398cd>] shrink_cache+0x14d/0x370
[<c013a0f8>] shrink_zone+0xa8/0xf0
[<c013a4ce>] balance_pgdat+0x1be/0x220
[<c013a5d9>] kswapd+0xa9/0xb0
[<c0104395>] kernel_thread_helper+0x5/0x10

Lee