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Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020

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From: Nikhil Sethi (निखिल सेठी)
Subject: Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020
Date: Sunday, September 5, 2010 - 8:57 am

This came back. Here is the dmesg output. It might be the problem only
happens if I have wmm_enabled=1 in my hostapd.conf. That is the only
thing that I changed yesterday, and today I saw these messages in my
logs. I will try to conform this.

I am running 2.6.35.4 with this patch:

*** 225,234 ****
  	int error = 0, i;
  	u32 size;

!
! 	common->rx_bufsize = roundup(IEEE80211_MAX_MPDU_LEN +
! 				     ah->caps.rx_status_len,
! 				     min(common->cachelsz, (u16)64));

  	ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
  				    ah->caps.rx_status_len);
--- 225,234 ----
  	int error = 0, i;
  	u32 size;

! 	size = roundup(IEEE80211_MAX_MPDU_LEN + ah->caps.rx_status_len,
!                        min(common->cachelsz, (u16)64));
!         common->rx_bufsize = min_t(u32, size,
!                                    SKB_MAX_ORDER(NET_SKB_PAD +
common->cachelsz, 0));

  	ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
  				    ah->caps.rx_status_len);

dmesg output:

skbuff alloc of size 3872 failed
ps: page allocation failure. order:1, mode:0x4020
Pid: 16022, comm: ps Tainted: G        W   2.6.35.4 #1
Call Trace:
 [<c0243bfe>] ? __alloc_pages_nodemask+0x3e6/0x513
 [<c025be97>] ? slob_new_pages+0xc/0x23
 [<c025c0a1>] ? __kmalloc_node+0x39/0x72
 [<c03338d8>] ? __alloc_skb+0x5c/0x105
 [<d09fa01a>] ? ath_rxbuf_alloc+0x1a/0x78 [ath]
 [<d0ab7109>] ? ath_rx_tasklet+0x2fb/0x808 [ath9k]
 [<c030fd49>] ? scsi_next_command+0x27/0x34
 [<d0ab53c5>] ? ath9k_tasklet+0xcc/0x107 [ath9k]
 [<c02193c3>] ? tasklet_action+0x5f/0x65
 [<c0219677>] ? __do_softirq+0x60/0xc6
 [<c021970b>] ? do_softirq+0x2e/0x30
 [<c02197fd>] ? irq_exit+0x53/0x55
 [<c020392c>] ? do_IRQ+0x3a/0x72
 [<c0202be9>] ? common_interrupt+0x29/0x30
 [<c0247874>] ? __remove_mapping+0x4b/0x8d
 [<c023ea9f>] ? try_to_release_page+0x20/0x30
 [<c0247d36>] ? shrink_page_list+0x2b8/0x46c
 [<c03158ea>] ? sd_prep_fn+0x1a5/0x92b
 [<c024816b>] ? shrink_inactive_list+0x281/0x552
 [<c02445d9>] ? determine_dirtyable_memory+0xc/0x12
 [<c024462c>] ? get_dirty_limits+0x18/0x2b0
 [<c032875e>] ? ata_bmdma_port_intr+0x21/0xcd
 [<c0248683>] ? shrink_zone+0x247/0x38f
 [<c021968c>] ? __do_softirq+0x75/0xc6
 [<c0247114>] ? shrink_slab+0x13c/0x186
 [<c0248f25>] ? try_to_free_pages+0x1ab/0x2be
 [<c0248f25>] ? try_to_free_pages+0x1ab/0x2be
 [<c0243acf>] ? __alloc_pages_nodemask+0x2b7/0x513
 [<c025be97>] ? slob_new_pages+0xc/0x23
 [<c025c038>] ? kmem_cache_alloc_node+0x23/0x53
 [<c0264b20>] ? getname+0x19/0xae
 [<c0266d00>] ? user_path_at+0x11/0x64
 [<c0250949>] ? access_process_vm+0xe0/0x1e7
 [<c0250a08>] ? access_process_vm+0x19f/0x1e7
 [<c02603d2>] ? vfs_fstatat+0x25/0x63
 [<c02604a9>] ? vfs_stat+0x10/0x12
 [<c02604ba>] ? sys_stat64+0xf/0x23
 [<c025e86b>] ? fput+0x88/0x191
 [<c026ab3b>] ? dput+0x92/0xd4
 [<c025e8ff>] ? fput+0x11c/0x191
 [<c026ebec>] ? mntput_no_expire+0x13/0x60
 [<c025c398>] ? filp_close+0x3b/0x54
 [<c025c403>] ? sys_close+0x52/0x72
 [<c038ad3d>] ? syscall_call+0x7/0xb
 [<c0380000>] ? unix_dgram_sendmsg+0x258/0x3c1
Mem-Info:
DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
Normal per-cpu:
CPU    0: hi:   90, btch:  15 usd:  79
active_anon:7578 inactive_anon:15111 isolated_anon:0
 active_file:11157 inactive_file:20027 isolated_file:32
 unevictable:467 dirty:1159 writeback:0 unstable:0
 free:706 slab_reclaimable:0 slab_unreclaimable:0
 mapped:2183 shmem:0 pagetables:278 bounce:0
DMA free:1000kB min:124kB low:152kB high:184kB active_anon:860kB
inactive_anon:2280kB active_file:3664kB inactive_file:4876kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15864kB
mlocked:0kB dirty:8kB writeback:0kB mapped:1212kB shmem:0kB
slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:32kB
pagetables:48kB unstable:0kB bounce:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 238 238
Normal free:1824kB min:1908kB low:2384kB high:2860kB
active_anon:29452kB inactive_anon:58164kB active_file:40964kB
inactive_file:75232kB unevictable:1868kB isolated(anon):0kB
isolated(file):128kB present:243840kB mlocked:1868kB dirty:4628kB
writeback:0kB mapped:7520kB shmem:0kB slab_reclaimable:0kB
slab_unreclaimable:0kB kernel_stack:1056kB pagetables:1064kB
unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0
all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 2*4kB 0*8kB 0*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 0*1024kB
0*2048kB 0*4096kB = 1000kB
Normal: 366*4kB 45*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB
0*1024kB 0*2048kB 0*4096kB = 1824kB
35298 total pagecache pages
3724 pages in swap cache
Swap cache stats: add 82399, delete 78675, find 45215/53344
Free swap  = 891536kB
Total swap = 963896kB
65535 pages RAM
1236 pages reserved
36808 pages shared
32201 pages non-shared
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
skbuff alloc of size 3872 failed
logdrop IN=eth0 OUT= MAC=00:00:24:cb:ca:c4:00:01:5c:32:6e:41:08:00
SRC=219.143.125.205 DST=98.248.43.157 LEN=60 TOS=0x00 PREC=0x20 TTL=50
ID=362 DF PROTO=TCP SPT=53976 DPT=22 WINDOW=5840 RES=0x00 SYN URGP=0
OPT (020405640402080A1EDFFF550000000001030303)
__alloc_pages_slowpath: 12 callbacks suppressed
swapper: page allocation failure. order:1, mode:0x4020
Pid: 0, comm: swapper Tainted: G        W   2.6.35.4 #1
Call Trace:
 [<c0243bfe>] ? __alloc_pages_nodemask+0x3e6/0x513
 [<c025be97>] ? slob_new_pages+0xc/0x23
 [<c025c0a1>] ? __kmalloc_node+0x39/0x72
 [<c03338d8>] ? __alloc_skb+0x5c/0x105
 [<d09fa01a>] ? ath_rxbuf_alloc+0x1a/0x78 [ath]
 [<d0ab7109>] ? ath_rx_tasklet+0x2fb/0x808 [ath9k]
 [<d0ab53c5>] ? ath9k_tasklet+0xcc/0x107 [ath9k]
 [<c02193c3>] ? tasklet_action+0x5f/0x65
 [<c0219677>] ? __do_softirq+0x60/0xc6
 [<c021970b>] ? do_softirq+0x2e/0x30
 [<c02197fd>] ? irq_exit+0x53/0x55
 [<c020392c>] ? do_IRQ+0x3a/0x72
 [<c0202be9>] ? common_interrupt+0x29/0x30
 [<c020768e>] ? default_idle+0x25/0x38
 [<c02017d0>] ? cpu_idle+0x2e/0x47
 [<c042361a>] ? start_kernel+0x21a/0x21d
Mem-Info:
DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
Normal per-cpu:
CPU    0: hi:   90, btch:  15 usd:  13
active_anon:11994 inactive_anon:12762 isolated_anon:0
 active_file:13736 inactive_file:14175 isolated_file:0
 unevictable:467 dirty:5803 writeback:9 unstable:0
 free:2013 slab_reclaimable:0 slab_unreclaimable:0
 mapped:1957 shmem:0 pagetables:281 bounce:0
DMA free:1000kB min:124kB low:152kB high:184kB active_anon:944kB
inactive_anon:2640kB active_file:4020kB inactive_file:4000kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15864kB
mlocked:0kB dirty:48kB writeback:0kB mapped:452kB shmem:0kB
slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:24kB
pagetables:24kB unstable:0kB bounce:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 238 238
Normal free:7052kB min:1908kB low:2384kB high:2860kB
active_anon:47032kB inactive_anon:48408kB active_file:50924kB
inactive_file:52700kB unevictable:1868kB isolated(anon):0kB
isolated(file):0kB present:243840kB mlocked:1868kB dirty:23164kB
writeback:36kB mapped:7376kB shmem:0kB slab_reclaimable:0kB
slab_unreclaimable:0kB kernel_stack:1040kB pagetables:1100kB
unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0
all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 2*4kB 0*8kB 0*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 0*1024kB
0*2048kB 0*4096kB = 1000kB
Normal: 1673*4kB 45*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB
0*1024kB 0*2048kB 0*4096kB = 7052kB
32351 total pagecache pages
4052 pages in swap cache
Swap cache stats: add 119272, delete 115220, find 58684/72663
Free swap  = 874472kB
Total swap = 963896kB
65535 pages RAM
1236 pages reserved
30733 pages shared
36511 pages non-shared
skbuff alloc of size 3872 failed
swapper: page allocation failure. order:1, mode:0x4020
Pid: 0, comm: swapper Tainted: G        W   2.6.35.4 #1
Call Trace:
 [<c0243bfe>] ? __alloc_pages_nodemask+0x3e6/0x513
 [<c025be97>] ? slob_new_pages+0xc/0x23
 [<c025c0a1>] ? __kmalloc_node+0x39/0x72
 [<c03338d8>] ? __alloc_skb+0x5c/0x105
 [<d09fa01a>] ? ath_rxbuf_alloc+0x1a/0x78 [ath]
 [<d0ab7109>] ? ath_rx_tasklet+0x2fb/0x808 [ath9k]
 [<d0ab53c5>] ? ath9k_tasklet+0xcc/0x107 [ath9k]
 [<c02193c3>] ? tasklet_action+0x5f/0x65
 [<c0219677>] ? __do_softirq+0x60/0xc6
 [<c021970b>] ? do_softirq+0x2e/0x30
 [<c02197fd>] ? irq_exit+0x53/0x55
 [<c020392c>] ? do_IRQ+0x3a/0x72
 [<c0202be9>] ? common_interrupt+0x29/0x30
 [<c020768e>] ? default_idle+0x25/0x38
 [<c02017d0>] ? cpu_idle+0x2e/0x47
 [<c042361a>] ? start_kernel+0x21a/0x21d
Mem-Info:
DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
Normal per-cpu:
CPU    0: hi:   90, btch:  15 usd:  13


2010/8/26 Nikhil Sethi (निखिल सेठी) <nikhil@sethi.ws>
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Messages in current thread:
[2.6.35-rc1] page alloc failure order:1, mode:0x4020, Michael Guntsche, (Fri Jun 4, 2:20 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Eric Dumazet, (Fri Jun 4, 5:53 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Michael Guntsche, (Fri Jun 4, 9:16 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Michael Guntsche, (Sun Jun 6, 2:56 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Eric Dumazet, (Sun Jun 6, 3:42 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Nikhil Sethi (नि ..., (Wed Aug 25, 1:25 pm)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Eric Dumazet, (Wed Aug 25, 1:44 pm)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Nikhil Sethi (नि ..., (Thu Aug 26, 10:53 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Nikhil Sethi (नि ..., (Sun Sep 5, 8:57 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Eric Dumazet, (Sun Sep 5, 1:25 pm)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Nikhil Sethi (नि ..., (Mon Nov 8, 9:25 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Eric Dumazet, (Mon Nov 8, 10:10 am)
Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020, Nikhil Sethi (नि ..., (Mon Nov 8, 10:22 am)