Re: debug_dma_assert_idle - snd_hda_intel - cpu touching an active dma mapped cacheline
From: poma
Date: Mon May 05 2014 - 21:57:17 EST
The truth is that sometimes it takes more than a few reboot for the bug to occur.
3.15.0-0.rc4.git0.1.fc21.i686+debug FAILED
http://koji.fedoraproject.org/koji/buildinfo?buildID=515111
...
ACPI: PCI Interrupt Link [AAZA] enabled at IRQ 22
snd_hda_intel 0000:00:07.0: Disabling MSI
snd_hda_intel 0000:00:07.0: position_fix set to 1 for device 1458:a022
...
------------[ cut here ]------------
WARNING: CPU: 1 PID: 496 at lib/dma-debug.c:593 debug_dma_assert_idle+0x159/0x1d0()
snd_hda_intel 0000:00:07.0: DMA-API: cpu touching an active dma mapped cacheline [cln=0x03012000]
Modules linked in: ip6t_rpfilter ip6t_REJECT xt_conntrack cfg80211 rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller kvm_amd snd_hda_codec kvm snd_hwdep nouveau snd_seq mxm_wmi video snd_seq_device snd_pcm i2c_algo_bit ttm drm_kms_helper ppdev microcode parport_serial parport_pc snd_timer k10temp drm serio_raw i2c_nforce2 parport snd i2c_core soundcore wmi acpi_cpufreq sunrpc ata_generic pata_acpi r8169 mii skge pata_amd uas usb_storage
------------[ cut here ]------------
CPU: 1 PID: 496 Comm: firewalld Not tainted 3.15.0-0.rc4.git0.1.fc21.i686+debug #1
Hardware name: Gigabyte Technology Co., Ltd. M720-US3/M720-US3, BIOS F7n 09/07/2010
WARNING: CPU: 2 PID: 852 at lib/dma-debug.c:593 debug_dma_assert_idle+0x159/0x1d0()
00000000 252e7679 00000000
snd_hda_intel 0000:00:07.0: DMA-API: cpu touching an active dma mapped cacheline [cln=0x03012000]
eed99df0 c0ae6f0d eed99e34
Modules linked in:
eed99e24 c0454432
ip6t_rpfilter ip6t_REJECT
c0ceddd8
xt_conntrack cfg80211 rfkill
eed99e54
ebtable_nat ebtable_broute bridge
000001f0
stp llc
c0cebc97
ebtable_filter
00000251
ebtables ip6table_nat nf_conntrack_ipv6
c0754c39
nf_defrag_ipv6
00000251
nf_nat_ipv6 ip6table_mangle ip6table_security
c0754c39
ip6table_raw ip6table_filter ip6_tables
iptable_nat nf_conntrack_ipv4
f3721700
nf_defrag_ipv4 nf_nat_ipv4
f2cfc480
nf_nat
03012000
eed99e40 c045448e 00000009 eed99e34 c0ceddd8
Call Trace:
[<c0ae6f0d>] dump_stack+0x48/0x60
nf_conntrack iptable_mangle
iptable_security iptable_raw
[<c0454432>] warn_slowpath_common+0x82/0xa0
snd_hda_codec_realtek snd_hda_codec_generic
snd_hda_intel snd_hda_controller
[<c0754c39>] ? debug_dma_assert_idle+0x159/0x1d0
kvm_amd
[<c0754c39>] ? debug_dma_assert_idle+0x159/0x1d0
snd_hda_codec
kvm snd_hwdep nouveau snd_seq
[<c045448e>] warn_slowpath_fmt+0x3e/0x60
[<c0754c39>] debug_dma_assert_idle+0x159/0x1d0
mxm_wmi video
[<c0589d69>] ? anon_vma_prepare+0x29/0x140
[<c057e18e>] do_wp_page+0xce/0x890
snd_seq_device snd_pcm
[<c0480065>] ? __hrtimer_start_range_ns+0x35/0x550
i2c_algo_bit
[<c0580792>] handle_mm_fault+0x662/0xb70
ttm drm_kms_helper
[<c0480065>] ? __hrtimer_start_range_ns+0x35/0x550
ppdev microcode parport_serial
parport_pc snd_timer
[<c0af31f7>] __do_page_fault+0x1a7/0x5d0
k10temp drm serio_raw i2c_nforce2
[<c05031fc>] ? __audit_syscall_entry+0x8c/0xe0
parport snd
[<c04b17ab>] ? trace_hardirqs_on+0xb/0x10
i2c_core soundcore
[<c04b16fc>] ? trace_hardirqs_on_caller+0x13c/0x1e0
wmi acpi_cpufreq
[<c0af3620>] ? __do_page_fault+0x5d0/0x5d0
[<c0af363a>] do_page_fault+0x1a/0x20
sunrpc ata_generic pata_acpi
[<c0af0014>] error_code+0x6c/0x74
r8169 mii
---[ end trace 08b99da35a4e0d8c ]---
Mapped at:
[<c0752ce2>] debug_dma_alloc_coherent+0x22/0x70
[<f80f8e90>] snd_dma_alloc_pages+0x170/0x260 [snd_pcm]
[<f80f8fe2>] snd_dma_alloc_pages_fallback+0x62/0x90 [snd_pcm]
skge
[<f80f93b0>] snd_malloc_sgbuf_pages+0xf0/0x211 [snd_pcm]
[<f80f8f23>] snd_dma_alloc_pages+0x203/0x260 [snd_pcm]
pata_amd
uas usb_storage
CPU: 2 PID: 852 Comm: firewalld Tainted: G W 3.15.0-0.rc4.git0.1.fc21.i686+debug #1
Hardware name: Gigabyte Technology Co., Ltd. M720-US3/M720-US3, BIOS F7n 09/07/2010
00000000 cef7cf31 00000000 ecf2ddf0 c0ae6f0d ecf2de34 ecf2de24 c0454432
c0ceddd8 ecf2de54 00000354 c0cebc97 00000251 c0754c39 00000251 c0754c39
f3721700 f2cfc480 03012000 ecf2de40 c045448e 00000009 ecf2de34 c0ceddd8
Call Trace:
[<c0ae6f0d>] dump_stack+0x48/0x60
[<c0454432>] warn_slowpath_common+0x82/0xa0
[<c0754c39>] ? debug_dma_assert_idle+0x159/0x1d0
[<c0754c39>] ? debug_dma_assert_idle+0x159/0x1d0
[<c045448e>] warn_slowpath_fmt+0x3e/0x60
[<c0754c39>] debug_dma_assert_idle+0x159/0x1d0
[<c0589d69>] ? anon_vma_prepare+0x29/0x140
[<c057e18e>] do_wp_page+0xce/0x890
[<c0480065>] ? __hrtimer_start_range_ns+0x35/0x550
[<c0580792>] handle_mm_fault+0x662/0xb70
[<c0480065>] ? __hrtimer_start_range_ns+0x35/0x550
[<c0af31f7>] __do_page_fault+0x1a7/0x5d0
[<c04b16fc>] ? trace_hardirqs_on_caller+0x13c/0x1e0
[<c05031fc>] ? __audit_syscall_entry+0x8c/0xe0
[<c04b17ab>] ? trace_hardirqs_on+0xb/0x10
[<c04b16fc>] ? trace_hardirqs_on_caller+0x13c/0x1e0
[<c0af3620>] ? __do_page_fault+0x5d0/0x5d0
[<c0af363a>] do_page_fault+0x1a/0x20
[<c0af0014>] error_code+0x6c/0x74
---[ end trace 08b99da35a4e0d8d ]---
Mapped at:
[<c0752ce2>] debug_dma_alloc_coherent+0x22/0x70
[<f80f8e90>] snd_dma_alloc_pages+0x170/0x260 [snd_pcm]
[<f80f8fe2>] snd_dma_alloc_pages_fallback+0x62/0x90 [snd_pcm]
[<f80f93b0>] snd_malloc_sgbuf_pages+0xf0/0x211 [snd_pcm]
[<f80f8f23>] snd_dma_alloc_pages+0x203/0x260 [snd_pcm]
...
However with the 'cachelines-revert.patch',
related to https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/lib/dma-debug.c?id=3b7a641,
after rebooting 12 times sequentially, everything is OK!
i.e.
kernel-3.15.0-0.rc4.git0.3.fc21.i686 PASSED
poma
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