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Date: Thu, 02 Feb 2012 16:09:40 -0600 From: Professor Berkley Shands <berkley@...s.wustl.edu> To: unlisted-recipients:; (no To-header on input) CC: Linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: 3.0.18 tcsetattr on fd 0 when detached freezes system (RCU timeouts) (Centos 6.1 x86_64) I built my .config from the redhat .config provided in 2.6.32-131 using make oldconfig. that failed miserably. I then used one based on 2.6.39.4, which actually booted, but I get these lockup errors, RCU timeouts, ... The system died right away on the tcsetattr(), (which also did not return any error). And my simple test case crashed all the time. Looked rather suspicous... Now after a week, *ALL* my 3.0.18 boxes lock up (other than sitting IDLE, any load eventually causes the system to stop scheduling). That is 32 core 6282's, 3.46GHz Nehalems, 2.3 GHz 2374's... I have to assume the tcsetattr() is an artifact at this point. Without building all the kernels in between 2.6.32.55 and 3.0.18, I needed a starting point for the .config that works. Usually it is something unnoticed that needed to be updated that make oldconfig didn't point out. Things do change that I can't keep current on. :-) So it appears that it has to be my configuration. Hence the request for a .config I can compare against to see what is wrong / misconfigured / not configured etc. Berkley -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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