From: Jia-Ju Bai <baijiaju1990@163.com>
To: yang.jie@linux.intel.com, lgirdwood@gmail.com,
broonie@kernel.org, perex@perex.cz, tiwai@suse.com
Cc: alsa-devel@alsa-project.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [BUG] haswell: A possible sleep-in-atomic bug in hsw_irq_thread
Date: Sun, 8 Oct 2017 23:06:38 +0800 [thread overview]
Message-ID: <0ba5fa3a-1202-752f-e7f2-5d689b6a9e7c@163.com> (raw)
According to sst-haswell-ipc.c, the driver may sleep under a spinlock,
and the function call path is:
hsw_irq_thread (acquire the spinlock)
hsw_process_notification
hsw_log_message
mutex_lock --> may sleep
This bug is found by my static analysis tool and my code review.
Thanks,
Jia-Ju Bai
next reply other threads:[~2017-10-08 15:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-08 15:06 Jia-Ju Bai [this message]
2017-12-12 14:19 [BUG] haswell: a possible sleep-in-atomic bug in hsw_irq_thread Jia-Ju Bai
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