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Message-Id: <20190922184924.32534-1-sashal@kernel.org>
Date: Sun, 22 Sep 2019 14:46:19 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Chris Wilson <chris@...is-wilson.co.uk>,
Takashi Iwai <tiwai@...e.de>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 5.2 001/185] ALSA: hda: Flush interrupts on disabling
From: Chris Wilson <chris@...is-wilson.co.uk>
[ Upstream commit caa8422d01e983782548648e125fd617cadcec3f ]
I was looking at
<4> [241.835158] general protection fault: 0000 [#1] PREEMPT SMP PTI
<4> [241.835181] CPU: 1 PID: 214 Comm: kworker/1:3 Tainted: G U 5.2.0-CI-CI_DRM_6509+ #1
<4> [241.835199] Hardware name: Dell Inc. OptiPlex 745 /0GW726, BIOS 2.3.1 05/21/2007
<4> [241.835234] Workqueue: events snd_hdac_bus_process_unsol_events [snd_hda_core]
<4> [241.835256] RIP: 0010:input_handle_event+0x16d/0x5e0
<4> [241.835270] Code: 48 8b 93 58 01 00 00 8b 52 08 89 50 04 8b 83 f8 06 00 00 48 8b 93 00 07 00 00 8d 70 01 48 8d 04 c2 83 e1 08 89 b3 f8 06 00 00 <66> 89 28 66 44 89 60 02 44 89 68 04 8b 93 f8 06 00 00 0f 84 fd fe
<4> [241.835304] RSP: 0018:ffffc9000019fda0 EFLAGS: 00010046
<4> [241.835317] RAX: 6b6b6b6ec6c6c6c3 RBX: ffff8880290fefc8 RCX: 0000000000000000
<4> [241.835332] RDX: 000000006b6b6b6b RSI: 000000006b6b6b6c RDI: 0000000000000046
<4> [241.835347] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000001
<4> [241.835362] R10: ffffc9000019faa0 R11: 0000000000000000 R12: 0000000000000004
<4> [241.835377] R13: 0000000000000000 R14: ffff8880290ff1d0 R15: 0000000000000293
<4> [241.835392] FS: 0000000000000000(0000) GS:ffff88803de80000(0000) knlGS:0000000000000000
<4> [241.835409] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [241.835422] CR2: 00007ffe9a99e9b7 CR3: 000000002f588000 CR4: 00000000000006e0
<4> [241.835436] Call Trace:
<4> [241.835449] input_event+0x45/0x70
<4> [241.835464] snd_jack_report+0xdc/0x100
<4> [241.835490] snd_hda_jack_report_sync+0x83/0xc0 [snd_hda_codec]
<4> [241.835512] snd_hdac_bus_process_unsol_events+0x5a/0x70 [snd_hda_core]
<4> [241.835530] process_one_work+0x245/0x610
which has the hallmarks of a worker queued from interrupt after it was
supposedly cancelled (note the POISON_FREE), and I could not see where
the interrupt would be flushed on shutdown so added the likely suspects.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111174
Signed-off-by: Chris Wilson <chris@...is-wilson.co.uk>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
sound/hda/hdac_controller.c | 2 ++
sound/pci/hda/hda_intel.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 812dc144fb5b2..2258804c58575 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -445,6 +445,8 @@ static void azx_int_disable(struct hdac_bus *bus)
list_for_each_entry(azx_dev, &bus->stream_list, list)
snd_hdac_stream_updateb(azx_dev, SD_CTL, SD_INT_MASK, 0);
+ synchronize_irq(bus->irq);
+
/* disable SIE for all streams */
snd_hdac_chip_writeb(bus, INTCTL, 0);
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 5732c31c41670..94aa7c9d20405 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1349,9 +1349,9 @@ static int azx_free(struct azx *chip)
}
if (bus->chip_init) {
+ azx_stop_chip(chip);
azx_clear_irq_pending(chip);
azx_stop_all_streams(chip);
- azx_stop_chip(chip);
}
if (bus->irq >= 0)
--
2.20.1
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