* RT throttling and mmc hardware interrupt timeout
@ 2016-11-12 9:56 Jamie Huang
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From: Jamie Huang @ 2016-11-12 9:56 UTC (permalink / raw)
To: linux-mmc
Hi all:
Recently, I do test with btrfs filesystem on emmc. When I see
the message "sched: RT throttling activated", uart, network and
other peripherals are not responding.
But, the timer is ok, so I can see the following messages:
"mmc0: Timeout waiting for hardware interrupt." again and again.
Finally, "I/O error" messages are coming and the btrfs
filesystem crashes.
I think, because I use threadirqs, so most irqs are processed
in threads, yes, RT threads. When "sched: RT throttling
activated" comes out, RT threads can not be execute for some
time, so, we can see mmc interrupt timeout message.
My kernel version is 3.10.55, I know that's very old. Still,
I want to know, is there any patch for this problem? Or does
any one encounter the same problem? Thank you.
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