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SubjectRe: regression: 100% io-wait with 2.6.24-rcX
Date
Am Donnerstag, 10. Januar 2008 schrieb Fengguang Wu:
> > problem, because the iowait problem disappeared today after the regular
> > Debian update. I'll try to install the old package versions to make it
> > show up again. Maybe that helps to debug it.
>
> Thank you. I'm running sid, ext2 as rootfs now ;-)

The error is back and I'm getting thousands of messages like this with the
patched kernel:

mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3936 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3936 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3936 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3936 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3936 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3936 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3936 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3936 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3936 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3936 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3937 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3937 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3937 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3937 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3937 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3937 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3937 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3937 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3938 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3938 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3939 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3939 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3939 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3939 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3939 0 0 wc _M
tw 1024 sk 2
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3939 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(146) 21115 global 3939 0 0 wc _M
tw 1024 sk 0
requeue_io 301: inode 81441 size 0 at 08:07(sda7)
mm/page-writeback.c 668 wb_kupdate: pdflush(147) 17451 global 3939 0 0 wc _M
tw 1024 sk 2

regards,
Jörg

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