Ubuntu
linux-backports-modules-2.6.28 package

Heavy I/O causes page allocation failiure in ath9k module

Bug #385048 reported by Erik Meitner
18
This bug affects 4 people
Affects Status Importance Assigned to Milestone
linux-backports-modules-2.6.28 (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

To reproduce:
1. Bring up the wireless interface.
2. Run any command that does heavy I/O, eg. "dd if=/dev/sda of=/dev/null"
3. Wait a few seconds

Always reproduceable.

The wireless continues to work after the problem occurs.

See the attached log.

System is a Lenovo Thinkpad T60 8744-5bu.

03:00.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (168c:0024) (rev 01)
 Subsystem: Atheros Communications Inc. Device 0033
 Flags: bus master, fast devsel, latency 0, IRQ 17
 Memory at edf00000 (64-bit, non-prefetchable) [size=64K]
 Capabilities: [40] Power Management version 2
 Capabilities: [50] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
 Capabilities: [60] Express Legacy Endpoint, MSI 00
 Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
 Capabilities: [100] Advanced Error Reporting <?>
 Capabilities: [140] Virtual Channel <?>
 Kernel driver in use: ath9k
 Kernel modules: ath9k

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
Package: linux-backports-modules-2.6.28-12-generic 2.6.28-12.13
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
SourcePackage: linux-backports-modules-2.6.28
Uname: Linux 2.6.28-12-generic i686

Revision history for this message
Erik Meitner (e.meitner) wrote :
Revision history for this message
Erik Meitner (e.meitner) wrote :

Easily reproducable on a fresh boot.

Another way to reproduce:
1. rmmod ath9k
2. "dd if=/dev/sda of=/dev/null"
Ran with no problem
3. modprobe ath9k
4. immediately got:
Jun 9 08:07:21 cheren kernel: [ 1534.014840] modprobe: page allocation failure. order:5, mode:0x80d0
Jun 9 08:07:21 cheren kernel: [ 1534.014847] Pid: 7371, comm: modprobe Not tainted 2.6.28-12-generic #43-Ubuntu
Jun 9 08:07:21 cheren kernel: [ 1534.014852] Call Trace:
Jun 9 08:07:21 cheren kernel: [ 1534.014864] [<c04fca36>] ? printk+0x18/0x1a
Jun 9 08:07:21 cheren kernel: [ 1534.014872] [<c0194287>] __alloc_pages_internal+0x387/0x490
Jun 9 08:07:21 cheren kernel: [ 1534.014881] [<c01087d3>] dma_generic_alloc_coherent+0x73/0xe0
...snip...

Revision history for this message
Erik Meitner (e.meitner) wrote :
Download full text (11.7 KiB)

This is still reproducible with these updates installed:
linux-image-2.6.28-13-generic
linux-backports-modules-2.6.28-13-generic

Simply do: cat /dev/sda > /dev/null
And get:
Jun 18 21:38:09 cheren kernel: [146818.176740] swapper: page allocation failure. order:1, mode:0x4020
Jun 18 21:38:09 cheren kernel: [146818.176748] Pid: 0, comm: swapper Tainted: G W 2.6.28-13-generic #44-Ubuntu
Jun 18 21:38:09 cheren kernel: [146818.176752] Call Trace:
Jun 18 21:38:09 cheren kernel: [146818.176765] [<c04fca36>] ? printk+0x18/0x1a
Jun 18 21:38:09 cheren kernel: [146818.176773] [<c0194287>] __alloc_pages_internal+0x387/0x490
Jun 18 21:38:09 cheren kernel: [146818.176780] [<c01943e1>] __get_free_pages+0x21/0x40
Jun 18 21:38:09 cheren kernel: [146818.176787] [<c01b8c2e>] __kmalloc_track_caller+0xee/0xf0
Jun 18 21:38:09 cheren kernel: [146818.176806] [<faaf1dde>] ? ath_rxbuf_alloc+0x2e/0x80 [ath9k]
Jun 18 21:38:09 cheren kernel: [146818.176814] [<c0427ecd>] __alloc_skb+0x4d/0x110
Jun 18 21:38:09 cheren kernel: [146818.176830] [<faaf1dde>] ath_rxbuf_alloc+0x2e/0x80 [ath9k]
Jun 18 21:38:09 cheren kernel: [146818.176846] [<faaf2215>] ath_rx_tasklet+0x345/0x6c0 [ath9k]
Jun 18 21:38:09 cheren kernel: [146818.176854] [<c0119a73>] ? lapic_next_event+0x13/0x20
Jun 18 21:38:09 cheren kernel: [146818.176870] [<faaef8e6>] ath9k_tasklet+0x76/0xb0 [ath9k]
Jun 18 21:38:09 cheren kernel: [146818.176878] [<c013ed18>] tasklet_action+0x78/0x100
Jun 18 21:38:09 cheren kernel: [146818.176884] [<c013f197>] __do_softirq+0x97/0x170
Jun 18 21:38:09 cheren kernel: [146818.176891] [<c011c7df>] ? ack_apic_level+0x6f/0x290
Jun 18 21:38:09 cheren kernel: [146818.176897] [<c013f2cd>] do_softirq+0x5d/0x60
Jun 18 21:38:09 cheren kernel: [146818.176903] [<c013f445>] irq_exit+0x55/0x90
Jun 18 21:38:09 cheren kernel: [146818.176910] [<c0106853>] do_IRQ+0x83/0xa0
Jun 18 21:38:09 cheren kernel: [146818.176915] [<c01051f3>] common_interrupt+0x23/0x30
Jun 18 21:38:09 cheren kernel: [146818.176923] [<c0319467>] ? acpi_idle_enter_bm+0x269/0x2b8
Jun 18 21:38:09 cheren kernel: [146818.176930] [<c040b44f>] cpuidle_idle_call+0x6f/0xd0
Jun 18 21:38:09 cheren kernel: [146818.176936] [<c010285d>] cpu_idle+0x6d/0xd0
Jun 18 21:38:09 cheren kernel: [146818.176943] [<c04ed07e>] rest_init+0x4e/0x60
Jun 18 21:38:09 cheren kernel: [146818.176947] Mem-Info:
Jun 18 21:38:09 cheren kernel: [146818.176950] DMA per-cpu:
Jun 18 21:38:09 cheren kernel: [146818.176954] CPU 0: hi: 0, btch: 1 usd: 0
Jun 18 21:38:09 cheren kernel: [146818.176958] CPU 1: hi: 0, btch: 1 usd: 0
Jun 18 21:38:09 cheren kernel: [146818.176962] Normal per-cpu:
Jun 18 21:38:09 cheren kernel: [146818.176965] CPU 0: hi: 186, btch: 31 usd: 152
Jun 18 21:38:09 cheren kernel: [146818.176970] CPU 1: hi: 186, btch: 31 usd: 20
Jun 18 21:38:09 cheren kernel: [146818.176973] HighMem per-cpu:
Jun 18 21:38:09 cheren kernel: [146818.176976] CPU 0: hi: 42, btch: 7 usd: 1
Jun 18 21:38:09 cheren kernel: [146818.176980] CPU 1: hi: 42, btch: 7 usd: 7
Jun 18 21:38:09 cheren kernel: [146818.176987] Active_anon:78037 active_file:23834 inactive_anon:80474
Jun 18 21:38:09 cher...

Revision history for this message
Erik Meitner (e.meitner) wrote :
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I removed all linux-backports-modules-* packages and the problem is still reproducible. Again, doing "cat /dev/sda > /dev/null " causes this only when the ath9k module is loaded.

Jul 1 07:43:59 cheren kernel: [ 418.094914] __ratelimit: 6 callbacks suppressed
Jul 1 07:43:59 cheren kernel: [ 418.094920] swapper: page allocation failure. order:1, mode:0x4020
Jul 1 07:43:59 cheren kernel: [ 418.094927] Pid: 0, comm: swapper Not tainted 2.6.28-13-generic #44-Ubuntu
Jul 1 07:43:59 cheren kernel: [ 418.094931] Call Trace:
Jul 1 07:43:59 cheren kernel: [ 418.094943] [<c04fca36>] ? printk+0x18/0x1a
Jul 1 07:43:59 cheren kernel: [ 418.094951] [<c0194287>] __alloc_pages_internal+0x387/0x490
Jul 1 07:43:59 cheren kernel: [ 418.094959] [<c01b7ebc>] ? __slab_alloc+0xcc/0x260
Jul 1 07:43:59 cheren kernel: [ 418.094965] [<c01943e1>] __get_free_pages+0x21/0x40
Jul 1 07:43:59 cheren kernel: [ 418.094971] [<c01b8c2e>] __kmalloc_track_caller+0xee/0xf0
Jul 1 07:43:59 cheren kernel: [ 418.094979] [<c0427eac>] ? __alloc_skb+0x2c/0x110
Jul 1 07:43:59 cheren kernel: [ 418.094986] [<c042818c>] ? dev_alloc_skb+0x1c/0x30
Jul 1 07:43:59 cheren kernel: [ 418.094992] [<c0427ecd>] __alloc_skb+0x4d/0x110
Jul 1 07:43:59 cheren kernel: [ 418.094999] [<c042818c>] dev_alloc_skb+0x1c/0x30
Jul 1 07:43:59 cheren kernel: [ 418.095031] [<f8019bc0>] ath_rxbuf_alloc+0x20/0x80 [ath9k]
Jul 1 07:43:59 cheren kernel: [ 418.095053] [<f8019c4c>] ath_rx_indicate+0x2c/0xd0 [ath9k]
Jul 1 07:43:59 cheren kernel: [ 418.095074] [<f801a01d>] ath_rx_tasklet+0x32d/0x520 [ath9k]
Jul 1 07:43:59 cheren kernel: [ 418.095082] [<c0119a73>] ? lapic_next_event+0x13/0x20
Jul 1 07:43:59 cheren kernel: [ 418.095104] [<f8022dee>] ath9k_tasklet+0x6e/0xa0 [ath9k]
Jul 1 07:43:59 cheren kernel: [ 418.095112] [<c013ed18>] tasklet_action+0x78/0x100
Jul 1 07:43:59 cheren kernel: [ 418.095118] [<c013f197>] __do_softirq+0x97/0x170
Jul 1 07:43:59 cheren kernel: [ 418.095125] [<c011c7df>] ? ack_apic_level+0x6f/0x290
Jul 1 07:43:59 cheren kernel: [ 418.095132] [<c013f2cd>] do_softirq+0x5d/0x60
Jul 1 07:43:59 cheren kernel: [ 418.095138] [<c013f445>] irq_exit+0x55/0x90
Jul 1 07:43:59 cheren kernel: [ 418.095144] [<c0106853>] do_IRQ+0x83/0xa0
Jul 1 07:43:59 cheren kernel: [ 418.095150] [<c01051f3>] common_interrupt+0x23/0x30
Jul 1 07:43:59 cheren kernel: [ 418.095157] [<c0319467>] ? acpi_idle_enter_bm+0x269/0x2b8
Jul 1 07:43:59 cheren kernel: [ 418.095165] [<c040b44f>] cpuidle_idle_call+0x6f/0xd0
Jul 1 07:43:59 cheren kernel: [ 418.095170] [<c010285d>] cpu_idle+0x6d/0xd0
Jul 1 07:43:59 cheren kernel: [ 418.095177] [<c04ed07e>] rest_init+0x4e/0x60
Jul 1 07:43:59 cheren kernel: [ 418.095181] Mem-Info:
Jul 1 07:43:59 cheren kernel: [ 418.095184] DMA per-cpu:
Jul 1 07:43:59 cheren kernel: [ 418.095188] CPU 0: hi: 0, btch: 1 usd: 0
Jul 1 07:43:59 cheren kernel: [ 418.095192] CPU 1: hi: 0, btch: 1 usd: 0
Jul 1 07:43:59 cheren kernel: [ 418.095195] Normal per-cpu:
Jul 1 07:43:59 cheren kernel: [ 418.095199] CPU 0: hi: 186, btch: 31 usd: 22
Jul 1 07:43:59 cheren kernel: [ 418.095203] CPU 1: hi: 186, btch: 3...

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Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in linux-backports-modules-2.6.28 (Ubuntu):
status: New → Confirmed
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