On Wednesday 02 September 2009 20:26:17 Bartlomiej Zolnierkiewicz wrote: > On Wednesday 02 September 2009 20:02:14 Luis R. Rodriguez wrote: > > On Wed, Sep 2, 2009 at 10:48 AM, Bartlomiej > > Zolnierkiewicz<bzolnier@xxxxxxxxx> wrote: > > > On Sunday 30 August 2009 14:37:42 Bartlomiej Zolnierkiewicz wrote: > > >> On Friday 28 August 2009 05:42:31 Zhu Yi wrote: > > >> > Bartlomiej Zolnierkiewicz reported an atomic order-6 allocation failure > > >> > for ipw2200 firmware loading in kernel 2.6.30. High order allocation is > > >> > > >> s/2.6.30/2.6.31-rc6/ > > >> > > >> The issue has always been there but it was some recent change that > > >> explicitly triggered the allocation failures (after 2.6.31-rc1). > > > > > > ipw2200 fix works fine but yesterday I got the following error while mounting > > > ext4 filesystem (mb_history is optional so the mount succeeded): > > > > OK so the mount succeeded. > > > > > EXT4-fs (dm-2): barriers enabled > > > kjournald2 starting: pid 3137, dev dm-2:8, commit interval 5 seconds > > > EXT4-fs (dm-2): internal journal on dm-2:8 > > > EXT4-fs (dm-2): delayed allocation enabled > > > EXT4-fs: file extents enabled > > > mount: page allocation failure. order:5, mode:0xc0d0 > > > Pid: 3136, comm: mount Not tainted 2.6.31-rc8-00015-gadda766-dirty #78 > > > Call Trace: > > > [<c0394de3>] ? printk+0xf/0x14 > > > [<c016a693>] __alloc_pages_nodemask+0x400/0x442 > > > [<c016a71b>] __get_free_pages+0xf/0x32 > > > [<c01865cf>] __kmalloc+0x28/0xfa > > > [<c023d96f>] ? __spin_lock_init+0x28/0x4d > > > [<c01f529d>] ext4_mb_init+0x392/0x460 > > > [<c01e99d2>] ext4_fill_super+0x1b96/0x2012 > > > [<c0239bc8>] ? snprintf+0x15/0x17 > > > [<c01c0b26>] ? disk_name+0x24/0x69 > > > [<c018ba63>] get_sb_bdev+0xda/0x117 > > > [<c01e6711>] ext4_get_sb+0x13/0x15 > > > [<c01e7e3c>] ? ext4_fill_super+0x0/0x2012 > > > [<c018ad2d>] vfs_kern_mount+0x3b/0x76 > > > [<c018adad>] do_kern_mount+0x33/0xbd > > > [<c019d0af>] do_mount+0x660/0x6b8 > > > [<c016a71b>] ? __get_free_pages+0xf/0x32 > > > [<c019d168>] sys_mount+0x61/0x99 > > > [<c0102908>] sysenter_do_call+0x12/0x36 > > > Mem-Info: > > > DMA per-cpu: > > > CPU 0: hi: 0, btch: 1 usd: 0 > > > Normal per-cpu: > > > CPU 0: hi: 186, btch: 31 usd: 0 > > > Active_anon:25471 active_file:22802 inactive_anon:25812 > > > inactive_file:33619 unevictable:2 dirty:2452 writeback:135 unstable:0 > > > free:4346 slab:4308 mapped:26038 pagetables:912 bounce:0 > > > DMA free:2060kB min:84kB low:104kB high:124kB active_anon:1660kB inactive_anon:1848kB active_file:144kB inactive_file:868kB unevictable:0kB present:15788kB pages_scanned:0 all_unreclaimable? no > > > lowmem_reserve[]: 0 489 489 > > > Normal free:15324kB min:2788kB low:3484kB high:4180kB active_anon:100224kB inactive_anon:101400kB active_file:91064kB inactive_file:133608kB unevictable:8kB present:501392kB pages_scanned:0 all_unreclaimable? no > > > lowmem_reserve[]: 0 0 0 > > > DMA: 1*4kB 1*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2060kB > > > Normal: 1283*4kB 648*8kB 159*16kB 53*32kB 10*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 15324kB > > > 57947 total pagecache pages > > > 878 pages in swap cache > > > Swap cache stats: add 920, delete 42, find 11/11 > > > Free swap = 1016436kB > > > Total swap = 1020116kB > > > 131056 pages RAM > > > 4233 pages reserved > > > 90573 pages shared > > > 77286 pages non-shared > > > EXT4-fs: mballoc enabled > > > EXT4-fs (dm-2): mounted filesystem with ordered data mode > > > > > > Thus it seems like the original bug is still there and any ideas how to > > > debug the problem further are appreciated.. > > > > > > The complete dmesg and kernel config are here: > > > > > > http://www.kernel.org/pub/linux/kernel/people/bart/ext4-paf.dmesg > > > http://www.kernel.org/pub/linux/kernel/people/bart/ext4-paf.config > > > > This looks very similar to the kmemleak ext4 reports upon a mount. If > > it is the same issue, which from the trace it seems it is, then this > > is due to an extra kmalloc() allocation and this apparently will not > > get fixed on 2.6.31 due to the closeness of the merge window and the > > non-criticalness this issue has been deemed. > > > > A patch fix is part of the ext4-patchqueue > > http://repo.or.cz/w/ext4-patch-queue.git > > Thanks for the pointer but the page allocation failures that I hit seem > to be caused by the memory management itself and the ext4 issue fixed by: > > http://repo.or.cz/w/ext4-patch-queue.git?a=blob;f=memory-leak-fix-ext4_group_info-allocation;h=c919fff34e70ec85f96d1833f9ce460c451000de;hb=HEAD > > is a different problem (unrelated to this one). Here is another data point. This time it is an order-6 page allocation failure for rt2870sta (w/ upcoming driver changes) and Linus' tree from few days ago.. ifconfig: page allocation failure. order:6, mode:0x8020 Pid: 4752, comm: ifconfig Tainted: G WC 2.6.31-04082-g1824090-dirty #80 Call Trace: [<c03996f2>] ? printk+0xf/0x15 [<c016b841>] __alloc_pages_nodemask+0x41d/0x462 [<c010681e>] dma_generic_alloc_coherent+0x53/0xbd [<c02f83aa>] hcd_buffer_alloc+0xdb/0xe8 [<c01067cb>] ? dma_generic_alloc_coherent+0x0/0xbd [<c02ee2d6>] usb_buffer_alloc+0x16/0x1d [<e121b627>] NICInitTransmit+0xe2/0x7e4 [rt2870sta] [<e121bfb1>] RTMPAllocTxRxRingMemory+0x11c/0x17b [rt2870sta] [<e11f0960>] rt28xx_init+0xa5/0x3f8 [rt2870sta] [<e121194a>] rt28xx_open+0x53/0xa2 [rt2870sta] [<e1211b77>] MainVirtualIF_open+0x23/0xf6 [rt2870sta] [<c03383a4>] dev_open+0x86/0xbb [<c0337b1a>] dev_change_flags+0x96/0x147 [<c036e9cb>] devinet_ioctl+0x20f/0x4f8 [<c036fc8f>] inet_ioctl+0x8e/0xa7 [<c032ab50>] sock_ioctl+0x1c9/0x1ed [<c032a987>] ? sock_ioctl+0x0/0x1ed [<c0195732>] vfs_ioctl+0x18/0x71 [<c0195cbb>] do_vfs_ioctl+0x491/0x4cf [<c01779d6>] ? handle_mm_fault+0x242/0x4ff [<c0119609>] ? do_page_fault+0x102/0x292 [<c0140721>] ? up_read+0x16/0x29 [<c0195d27>] sys_ioctl+0x2e/0x48 [<c0102908>] sysenter_do_call+0x12/0x36 Mem-Info: DMA per-cpu: CPU 0: hi: 0, btch: 1 usd: 0 Normal per-cpu: CPU 0: hi: 186, btch: 31 usd: 84 Active_anon:14664 active_file:30057 inactive_anon:31744 inactive_file:29940 unevictable:2 dirty:11 writeback:0 unstable:0 free:5421 slab:4037 mapped:7781 pagetables:963 bounce:0 DMA free:2060kB min:84kB low:104kB high:124kB active_anon:0kB inactive_anon:124kB active_file:3284kB inactive_file:972kB unevictable:0kB present:15788kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 489 489 Normal free:19624kB min:2788kB low:3484kB high:4180kB active_anon:58656kB inactive_anon:126852kB active_file:116944kB inactive_file:118788kB unevictable:8kB present:501392kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 3*4kB 0*8kB 2*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2060kB Normal: 2180*4kB 625*8kB 303*16kB 33*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 19624kB 64568 total pagecache pages 3652 pages in swap cache Swap cache stats: add 21642, delete 17990, find 4906/6079 Free swap = 981700kB Total swap = 1020116kB 131056 pages RAM 4262 pages reserved 91941 pages shared 60834 pages non-shared <-- ERROR in Alloc TX TxContext[0] HTTX_BUFFER !! <-- RTMPAllocTxRxRingMemory, Status=3 ERROR!!! RTMPAllocDMAMemory failed, Status[=0x00000003] !!! rt28xx Initialized fail !!! -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
