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    Subjectmm/ipw2200 regression (was: Re: linux-next: Tree for August 6)
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    On Friday 07 August 2009 15:15:45 Bartlomiej Zolnierkiewicz wrote:
    > On Thursday 06 August 2009 22:50:50 Bartlomiej Zolnierkiewicz wrote:
    > > On Thursday 06 August 2009 11:22:09 Stephen Rothwell wrote:
    > > > Hi all,
    > > >
    > > > Changes since 20090805:
    > >
    > > At the moment -next is completely unusable for anything other than
    > > detecting merge conflicts.. Running -next was never a completely
    > > smooth experience but for a past year it was more-or-less doable.
    > > However the last two months have been an absolute horror and I've
    > > been hitting issues way faster than I was able to trace/report
    > > them properly..
    > >
    > > Right now I still have following *outstanding* issues (on just *one*
    > > machine/distribution):
    > >
    > > - Random (after some long hours) order:6 mode:0x8020 page allocation
    > > failure (when ipw2200 driver reloads firmware on firmware error).
    > >
    > > [ I had first thought that it was caused by SLQB (which got enabled
    > > as default somewhere along the way) but it also happens with SLUB
    > > and I have good reasons to believe that is caused by heavy mm
    > > changes first seen in next-20090618 (I've been testing next-20090617
    > > for many days and it never happened there), the last confirmed
    > > release with the problem is next-20090728. ]
    >
    > If anyone is interested in the full log of the problem:
    >
    > ipw2200: Firmware error detected. Restarting.
    > ipw2200/0: page allocation failure. order:6, mode:0x8020
    > Pid: 1004, comm: ipw2200/0 Not tainted 2.6.31-rc4-next-20090728-04869-gdae50fe-dirty #51

    The bug managed to slip into Linus' tree..

    ipw2200: Firmware error detected. Restarting.
    ipw2200/0: page allocation failure. order:6, mode:0x8020
    Pid: 945, comm: ipw2200/0 Not tainted 2.6.31-rc6-dirty #69
    Call Trace:
    [<c039505f>] ? printk+0xf/0x18
    [<c016abc7>] __alloc_pages_nodemask+0x400/0x442
    [<c01068b5>] dma_generic_alloc_coherent+0x53/0xc2
    [<c0106862>] ? dma_generic_alloc_coherent+0x0/0xc2
    [<e12c409b>] ipw_load_firmware+0x8f/0x4fb [ipw2200]
    [<c01029bc>] ? restore_all_notrace+0x0/0x18
    [<e12c0def>] ? ipw_stop_nic+0x2b/0x5d [ipw2200]
    [<e12c88bd>] ipw_load+0x8b2/0xf94 [ipw2200]
    [<e12cc727>] ipw_up+0xe1/0x5c6 [ipw2200]
    [<e12ca7a3>] ? ipw_down+0x1f7/0x1ff [ipw2200]
    [<e12ccc3e>] ipw_adapter_restart+0x32/0x46 [ipw2200]
    [<e12ccc73>] ipw_bg_adapter_restart+0x21/0x2c [ipw2200]
    [<c0139694>] worker_thread+0x15e/0x240
    [<c0139652>] ? worker_thread+0x11c/0x240
    [<e12ccc52>] ? ipw_bg_adapter_restart+0x0/0x2c [ipw2200]
    [<c013ca65>] ? autoremove_wake_function+0x0/0x2f
    [<c0139536>] ? worker_thread+0x0/0x240
    [<c013c828>] kthread+0x6b/0x70
    [<c013c7bd>] ? kthread+0x0/0x70
    [<c01034ab>] kernel_thread_helper+0x7/0x10
    Mem-Info:
    DMA per-cpu:
    CPU 0: hi: 0, btch: 1 usd: 0
    Normal per-cpu:
    CPU 0: hi: 186, btch: 31 usd: 80
    Active_anon:25319 active_file:23485 inactive_anon:25576
    inactive_file:23530 unevictable:2 dirty:1464 writeback:200 unstable:0
    free:11175 slab:6927 mapped:7760 pagetables:930 bounce:0
    DMA free:2052kB min:84kB low:104kB high:124kB active_anon:0kB inactive_anon:92kB active_file:1608kB inactive_file:1604kB unevictable:0kB present:15788kB pages_scanned:0 all_unreclaimable? no
    lowmem_reserve[]: 0 489 489
    Normal free:42648kB min:2788kB low:3484kB high:4180kB active_anon:101276kB inactive_anon:102212kB active_file:92332kB inactive_file:92516kB unevictable:8kB present:501392kB pages_scanned:0 all_unreclaimable? no
    lowmem_reserve[]: 0 0 0
    DMA: 3*4kB 7*8kB 2*16kB 1*32kB 0*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2052kB
    Normal: 1038*4kB 2148*8kB 1200*16kB 56*32kB 1*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 42648kB
    52333 total pagecache pages
    4675 pages in swap cache
    Swap cache stats: add 27030, delete 22355, find 3967/5275
    Free swap = 956380kB
    Total swap = 1020116kB
    131056 pages RAM
    4225 pages reserved
    53608 pages shared
    86334 pages non-shared
    ipw2200: Unable to load firmware: -12
    ipw2200: Unable to load firmware: -12
    ipw2200: Failed to up device


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