Date: Thu, 16 Sep 2010 15:32:27 +0200 From: Michael Sperber <sperber@deinprogramm.de> To: Ed Schouten <ed@80386.nl> Cc: freebsd-stable@freebsd.org, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: After 7.3->8.1, moused on serial mouse draws 100% CPU Message-ID: <y9lhbhpg6fo.fsf@deinprogramm.de> In-Reply-To: <20100916110944.GY56986@hoeg.nl> (Ed Schouten's message of "Thu, 16 Sep 2010 13:09:44 %2B0200") References: <y9leicugixd.fsf@deinprogramm.de> <20100916091559.GA16270@icarus.home.lan> <20100916110944.GY56986@hoeg.nl>
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Ed Schouten <ed@80386.nl> writes:
> I should really get myself subscribed to stable@...
>
> Anyway, Michael, can you attach truss to the process to see what it's
> actually doing (truss -p $pid)? I'm interested in a single `iteration'
> of what it's doing. Thanks!
The relevant bit is this, I think:
open("/dev/cuau0",O_RDWR|O_NONBLOCK,01001172450) = 2 (0x2)
ioctl(2,MOUSE_SETLEVEL,0x805004c) ERR#25 'Inappropriate ioctl for device'
ioctl(2,MOUSE_GETLEVEL,0xbfbfe4cc) ERR#25 'Inappropriate ioctl for device'
ioctl(2,MOUSE_GETHWINFO,0x8050088) ERR#25 'Inappropriate ioctl for device'
ioctl(2,MOUSE_GETMODE,0x805009c) ERR#25 'Inappropriate ioctl for device'
write(2,"moused: ",8) = 8 (0x8)
write(2,"PnP COM device rev 1.0 probe...",31) = 31 (0x1f)
write(2,"\n",1) = 1 (0x1)
ioctl(2,TIOCMGET,0xbfbfe4c4) = 0 (0x0)
ioctl(2,TIOCMSET,0xbfbfe4c4) = 0 (0x0)
nanosleep({0.240000000 }) = 0 (0x0)
ioctl(2,TIOCMGET,0xbfbfe4c4) = 0 (0x0)
write(2,"moused: ",8) ERR#5 'Input/output error'
write(2,"\n",1) ERR#5 'Input/output error'
write(2,"\n",1) ERR#5 'Input/output error'
ioctl(2,TIOCMGET,0xbfbfe4c4) = 0 (0x0)
ioctl(2,TIOCMSET,0xbfbfe4c4) = 0 (0x0)
nanosleep({0.240000000 }) = 0 (0x0)
ioctl(2,TIOCGETA,0xbfbfe2fc) = 0 (0x0)
ioctl(2,TIOCSETAW,0xbfbfe2fc) = 0 (0x0)
nanosleep({0.100000000 }) = 0 (0x0)
ioctl(2,TIOCSETAW,0xbfbfe2fc) = 0 (0x0)
ioctl(2,TIOCFLUSH,0xbfbfe4c4) = 0 (0x0)
ioctl(2,TIOCMBIS,0xbfbfe4c4) = 0 (0x0)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
write(2,"\n",1) ERR#5 'Input/output error'
nanosleep({0.240000000 }) = 0 (0x0)
read(2,"3",1) = 1 (0x1)
write(2,"\n",1) ERR#5 'Input/output error'
read(2,"\b",1) = 1 (0x1)
write(2,"\n",1) ERR#5 'Input/output error'
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"\^A",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"\^Z",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"+",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"-",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,",",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"\^P",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"\^P",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"\^P",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"\^Q",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"<",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"<",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"-",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"/",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"5",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"3",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"%",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"<",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"0",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,".",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"0",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"\^P",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,"&",1) = 1 (0x1)
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,0xbfbfe4ec,1) ERR#35 'Resource temporarily unavailable'
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,0xbfbfe4ed,1) ERR#35 'Resource temporarily unavailable'
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
read(2,0xbfbfe4ee,1) ERR#35 'Resource temporarily unavailable'
select(1024,{2},0x0,0x0,{0.240000 }) = 1 (0x1)
The last two lines then repeat endlessly.
--
Regards,
Mike
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