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Date:   Sun, 4 Sep 2022 11:37:35 +0200
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Subject: Re: [BUG] commit a8d302a0b77057568350fe0123e639d02dba0745 cause
 IO_PAGE_FAULT and a lot of errors #forregzbot
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To:     Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
        linux-sound@vger.kernel.org
References: <CABXGCsO+kB2t5QyHY-rUe76npr1m0-5JOtt8g8SiHUo34ur7Ww@mail.gmail.com>
Cc:     "regressions@lists.linux.dev" <regressions@lists.linux.dev>
From:   Thorsten Leemhuis <regressions@leemhuis.info>
In-Reply-To: <CABXGCsO+kB2t5QyHY-rUe76npr1m0-5JOtt8g8SiHUo34ur7Ww@mail.gmail.com>
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TWIMC: this mail is primarily send for documentation purposes and for
regzbot, my Linux kernel regression tracking bot. These mails usually
contain '#forregzbot' in the subject, to make them easy to spot and filter.

[TLDR: I'm adding this regression report to the list of tracked
regressions; all text from me you find below is based on a few templates
paragraphs you might have encountered already already in similar form.]

Hi, this is your Linux kernel regression tracker. CCing the regression
mailing list, as it should be in the loop for all regressions, as
explained here:
https://www.kernel.org/doc/html/latest/admin-guide/reporting-issues.html

On 03.09.22 20:04, Mikhail Gavrilov wrote:
> Hi, I am bisecting issue that cause errors:
> [   57.710235] snd_hda_intel 0000:03:00.1: spurious response
> 0xeb0cce6a:0x8b612b0d, rp = 1, wp = 1
> [   57.710240] ------------[ cut here ]------------
> [   57.710241] BUG?
> [   57.710257] amd_iommu_report_page_fault: 216 callbacks suppressed
> [   57.710260] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848808 flags=0x0020]
> [   57.710270] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848800 flags=0x0000]
> [   57.710276] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848810 flags=0x0020]
> [   57.710282] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848810 flags=0x0000]
> [   57.710278] WARNING: CPU: 5 PID: 968 at
> sound/hda/hdac_controller.c:215
> snd_hdac_bus_update_rirb.cold+0x24/0x5b [snd_hda_core]
> [   57.710289] Modules linked in: uinput
> [   57.710291] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848818 flags=0x0020]
> [   57.710292]  rfcomm snd_seq_dummy snd_hrtimer nft_objref
> nf_conntrack_netbios_ns nf_conntrack_broadcast
> [   57.710296] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848810 flags=0x0000]
> [   57.710297]  nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib
> nft_reject_inet nf_reject_ipv4
> [   57.710302] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848820 flags=0x0020]
> [   57.710301]  nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat
> nf_conntrack
> [   57.710307] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848820 flags=0x0000]
> [   57.710306]  nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables
> nfnetlink qrtr bnep
> [   57.710312] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848828 flags=0x0020]
> [   57.710313]  snd_hda_codec_realtek snd_hda_codec_generic
> snd_hda_codec_hdmi intel_rapl_msr snd_sof_amd_renoir snd_sof_amd_acp
> [   57.710318] snd_hda_intel 0000:03:00.1: AMD-Vi: Event logged
> [IO_PAGE_FAULT domain=0x000e address=0x152848820 flags=0x0000]
> [   57.710318]  intel_rapl_common mt7921e snd_sof_pci mt7921_common
> snd_sof sunrpc snd_sof_utils mt76_connac_lib snd_hda_intel
> snd_intel_dspcfg snd_intel_sdw_acpi snd_soc_core mt76 snd_hda_codec
> snd_compress ac97_bus edac_mce_amd snd_hda_core snd_pcm_dmaengine
> btusb snd_pci_acp6x binfmt_misc snd_hwdep kvm_amd btrtl mac80211 btbcm
> snd_seq vfat btintel libarc4 snd_seq_device btmtk kvm fat bluetooth
> snd_pcm irqbypass snd_pci_acp5x cfg80211 rapl snd_timer
> snd_rn_pci_acp3x snd_acp_config joydev snd pcspkr snd_soc_acpi
> wmi_bmof asus_nb_wmi soundcore snd_pci_acp3x k10temp i2c_piix4
> asus_wireless amd_pmc zram amdgpu drm_ttm_helper ttm iommu_v2 hid_asus
> gpu_sched asus_wmi ledtrig_audio drm_buddy drm_display_helper
> sparse_keymap crct10dif_pclmul platform_profile ucsi_acpi nvme
> crc32_pclmul hid_multitouch crc32c_intel ghash_clmulni_intel serio_raw
> typec_ucsi rfkill ccp nvme_core cec r8169 sp5100_tco typec wmi video
> i2c_hid_acpi i2c_hid ip6_tables ip_tables fuse
> [   57.710389] CPU: 5 PID: 968 Comm: systemd-logind Tainted: G
> W    L     6.0.0-rc2-06-a8d302a0b77057568350fe0123e639d02dba0745+ #65
> [   57.710392] Hardware name: ASUSTeK COMPUTER INC. ROG Strix
> G513QY_G513QY/G513QY, BIOS G513QY.318 03/29/2022
> [   57.710394] RIP: 0010:snd_hdac_bus_update_rirb.cold+0x24/0x5b [snd_hda_core]
> [   57.710403] Code: f0 e9 10 9f ff ff 48 8b 3b 41 89 e9 44 89 e9 44
> 89 fa 48 c7 c6 e0 53 c4 c1 e8 38 85 2a f0 48 c7 c7 0e 0c c4 c1 e8 df
> 0d 26 f0 <0f> 0b 0f b7 83 c0 03 00 00 e9 6a bf ff ff 48 8b 3b 44 89 e9
> 44 89
> [   57.710406] RSP: 0000:ffffab4e05f1fe20 EFLAGS: 00010082
> [   57.710408] RAX: 0000000000000004 RBX: ffff99c7415b9028 RCX: 0000000000000000
> [   57.710410] RDX: 0000000000010002 RSI: ffffffffb28cf864 RDI: 00000000ffffffff
> [   57.710412] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffab4e05f1fcd0
> [   57.710414] R10: 0000000000000003 R11: ffff99d65d2fffe8 R12: ffff99c7415b9540
> [   57.710415] R13: 000000008b612b0d R14: 0000000000000001 R15: 00000000eb0cce6a
> [   57.710417] FS:  00007f0fd0b9bbc0(0000) GS:ffff99d617600000(0000)
> knlGS:0000000000000000
> [   57.710419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   57.710421] CR2: 00007f364c00c0f8 CR3: 0000000153686000 CR4: 0000000000750ee0
> [   57.710423] PKRU: 55555554
> [   57.710425] Call Trace:
> [   57.710427]  <TASK>
> [   57.710431]  azx_interrupt+0x83/0x110 [snd_hda_codec]
> [   57.710443]  __handle_irq_event_percpu+0x93/0x330
> [   57.710449]  handle_irq_event+0x34/0x70
> [   57.710452]  handle_fasteoi_irq+0x90/0x1e0
> [   57.710455]  __common_interrupt+0x71/0x150
> [   57.710460]  common_interrupt+0x5c/0xd0
> [   57.710465]  asm_common_interrupt+0x22/0x40
> [   57.710469] RIP: 0033:0x7f0fd17c56e4
> [   57.710471] Code: 00 0f 1f 44 00 00 f3 0f 1e fa f2 ff 25 15 61 2d
> 00 0f 1f 44 00 00 f3 0f 1e fa f2 ff 25 0d 61 2d 00 0f 1f 44 00 00 f3
> 0f 1e fa <f2> ff 25 05 61 2d 00 0f 1f 44 00 00 f3 0f 1e fa f2 ff 25 fd
> 60 2d
> [   57.710473] RSP: 002b:00007ffdafa5db78 EFLAGS: 00000202
> [   57.710475] RAX: 0000000000000358 RBX: 0000557736741ed0 RCX: 00007f0fd16473eb
> [   57.710476] RDX: 0000557736741f0c RSI: 0000557736741ed0 RDI: 0000557736742000
> [   57.710477] RBP: 00007ffdafa5dba0 R08: 000055773674f3d0 R09: 0000000557736755
> [   57.710479] R10: 0000000000000000 R11: 0000000000000202 R12: 0000557736734d00
> [   57.710480] R13: 0000557736734d00 R14: 0000557736734d00 R15: 0000557736733a30
> [   57.710485]  </TASK>
> [   57.710487] irq event stamp: 268268
> [   57.710488] hardirqs last  enabled at (268267):
> [<ffffffffb1f273b4>] _raw_write_unlock_irq+0x24/0x50
> [   57.710491] hardirqs last disabled at (268268):
> [<ffffffffb1f1ddfc>] __schedule+0xe2c/0x16d0
> [   57.710495] softirqs last  enabled at (267528):
> [<ffffffffb10fe6a9>] __irq_exit_rcu+0xf9/0x170
> [   57.710499] softirqs last disabled at (267487):
> [<ffffffffb10fe6a9>] __irq_exit_rcu+0xf9/0x170
> [   57.710502] ---[ end trace 0000000000000000 ]---
> [   57.710514] snd_hdac_bus_update_rirb: 22 callbacks suppressed
> [   57.710515] snd_hda_intel 0000:03:00.1: spurious response
> 0x2b0dec20:0xf61a0b81, last cmd=0x000000
> [   57.710523] snd_hda_intel 0000:03:00.1: spurious response
> 0x84f2e10f:0xdb14c123, last cmd=0x000000
> [   57.710525] snd_hda_intel 0000:03:00.1: spurious response
> 0x1826d07:0x9c2987ff, rp = 5, wp = 9
> [   57.710527] ------------[ cut here ]------------
> 
> and bisect said this commit causes it:
> a8d302a0b77057568350fe0123e639d02dba0745 is the first bad commit
> commit a8d302a0b77057568350fe0123e639d02dba0745
> Author: Takashi Iwai <tiwai@suse.de>
> Date:   Sun Aug 21 17:59:11 2022 +0200
> 
>     ALSA: memalloc: Revive x86-specific WC page allocations again
> 
>     We dropped the x86-specific hack for WC-page allocations with a hope
>     that the standard dma_alloc_wc() works nowadays.  Alas, it doesn't,
>     and we need to take back some workaround again, but in a different
>     form, as the previous one was broken for some platforms.
> 
>     This patch re-introduces the x86-specific WC-page allocations, but it
>     uses rather the manual page allocations instead of
>     dma_alloc_coherent().  The use of dma_alloc_coherent() was also a
>     potential problem in the recent addition of the fallback allocation
>     for noncontig pages, and this patch eliminates both at once.
> 
>     Fixes: 9882d63bea14 ("ALSA: memalloc: Drop x86-specific hack for
> WC allocations")
>     Cc: <stable@vger.kernel.org>
>     BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216363
>     Link: https://lore.kernel.org/r/20220821155911.10715-1-tiwai@suse.de
>     Signed-off-by: Takashi Iwai <tiwai@suse.de>
> 
>  sound/core/memalloc.c | 87 +++++++++++++++++++++++++++++++++++++++++----------
>  1 file changed, 71 insertions(+), 16 deletions(-)
> 
> Full kernel log is here: https://pastebin.com/RMtNAYPe
> 
Thanks for the report. To be sure below issue doesn't fall through the
cracks unnoticed, I'm adding it to regzbot, my Linux kernel regression
tracking bot:

#regzbot ^introduced a8d302a0b770
#regzbot title snd: IO_PAGE_FAULT and a lot of errors since a8d302a0b770
#regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply -- ideally with also
telling regzbot about it, as explained here:
https://linux-regtracking.leemhuis.info/tracked-regression/

Reminder for developers: When fixing the issue, add 'Link:' tags
pointing to the report (the mail this one replies to), as explained for
in the Linux kernel's documentation; above webpage explains why this is
important for tracked regressions.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I deal with a lot of
reports and sometimes miss something important when writing mails like
this. If that's the case here, don't hesitate to tell me in a public
reply, it's in everyone's interest to set the public record straight.