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List:       freebsd-hackers
Subject:    Re: still issues with unreadable dmesg output on SMP systems
From:       Adrian Chadd <adrian () freebsd ! org>
Date:       2012-03-22 14:34:48
Message-ID: CAJ-Vmo=EO2vxVnG4_bjZTcbkoAhscOtnV9QdXFARe+SGtMgzVw () mail ! gmail ! com
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Hi,

On 22 March 2012 05:13, John Baldwin <jhb@freebsd.org> wrote:

> s/fixed/mostly worked around/
>
> The problem is that the work around isn't perfect. =A0The root cause is s=
till
> not fixed. =A0avg@ has some ideas on better ways to handle this, but it i=
s a bit
> tricky to get this right since we also dont' want printfs to be delayed t=
oo
> much (and to fix this perfectly requires buffering printf output).

I'm rapidly liking the brokenness of the IO.

Why? Because it becomes _very freaking obvious_ when things are
running concurrently. I've found many ath/net80211 bugs because of
this.

Having it as an option would be nice. :-)


Adrian
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