Messages in this thread | | | Date | Mon, 06 Jun 2011 15:49:25 +0200 | From | Jiri Slaby <> | Subject | Re: [PATCH] serial: 8250, increase PASS_LIMIT |
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On 06/06/2011 02:09 PM, Alan Cox wrote: > On Sun, 5 Jun 2011 22:51:49 +0200 > Jiri Slaby <jslaby@suse.cz> wrote: > >> From: Jiri Slaby <jirislaby@gmail.com> >> >> With virtual machines like qemu, it's pretty common to see "too much >> work for irq4" messages nowadays. This happens when a bunch of output >> is printed on the emulated serial console. This is caused by too low >> PASS_LIMIT. When ISR loops more than the limit, it spits the message. >> >> I've been using a kernel with doubled the limit and I couldn't see no >> problems. Maybe it's time to get rid of the message now? > > We need a limit to deal with hangs caused by misconfiguration / > mis-detection on ISA ports in particular but we can certainly bump the > limit to handle poor emulations.
Yeah, I meant it that way (get rid of the message by bumping the limit -- this patch).
thanks, -- js suse labs
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