From: Ivica Mikec <mikeci@acm.org>
To: <linux-kernel@vger.kernel.org>
Subject: Possible bug in 8250.c
Date: Fri, 19 Aug 2011 10:44:47 -0700 [thread overview]
Message-ID: <26505.1313775887@sonic.net> (raw)
Hi!
I noticed a problem in 8250.c.
My board has only one UART port, and is 16550 compatible, so in function serial8250_interrupt I see that serial_in function is called twice. Second time, code "else if (end == NULL)" is executed and function return IRQ_NONE. This causes an entry in /proc/irq/spurious:
count 239
unhandled 1
last_unhandled 4294700846 ms
But this is not a spurious interrupt.
Regards.
next reply other threads:[~2011-08-19 18:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-19 17:44 Ivica Mikec [this message]
2011-08-19 19:01 ` Possible bug in 8250.c Jiri Slaby
-- strict thread matches above, loose matches on Subject: below --
2011-08-20 0:58 Ivica Mikec
2011-08-20 16:21 ` Alan Cox
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