Date: Sun, 02 Nov 2014 12:15:00 -0700 From: Ian Lepore <ian@FreeBSD.org> To: Adrian Chadd <adrian@freebsd.org> Cc: "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org>, Mark R V Murray <mark@grondar.org> Subject: Re: svn commit: r273958 - head/sys/dev/random Message-ID: <1414955700.1200.6.camel@revolution.hippie.lan> In-Reply-To: <CAJ-VmomeOwE3LOpehhJ__G=FCoBDRXrrn%2BSfjwPFODts6YYHNQ@mail.gmail.com> References: <201411020201.sA221unt091493@svn.freebsd.org> <720EB74E-094A-43F3-8B1C-47BC7F6FECC3@grondar.org> <1414934579.17308.248.camel@revolution.hippie.lan> <6FB65828-6A79-4BDE-A9F7-BC472BA538CE@grondar.org> <CAJ-VmomeOwE3LOpehhJ__G=FCoBDRXrrn%2BSfjwPFODts6YYHNQ@mail.gmail.com>
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On Sun, 2014-11-02 at 11:05 -0800, Adrian Chadd wrote: > [snip all the conversation] > > Ok. There's still a problem that I can trigger by trying to Ctrl-C a > process that's blocked reading for randomness. I'll try to chase up > more details about and file a PR about it. > > The unfortunate part is that the kernel side stack trace of the > offending / hung process isn't currently helpful. :( > > > > > -adrian Possibly related... when I had the boot time save-entropy stuff stuck in a read yesterday I tried ^T and it first reported the hung process in a "block" wait. Any subsequent ^T showed the process as runnable and the cpu usage as 100%. This is on a single-core arm. -- Ian
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