Ingo Molnar <mingo@xxxxxxx> wrote:
* Andrew Morton <akpm@xxxxxxxx> wrote:
Rusty Russell <rusty@xxxxxxxxxxxxxxx> wrote:FC1 is like really ancient. I think there was a glibc bug that caused vsyscall related init hangs like that. To nevertheless let people run their old stuff there's a vdso=0 boot option in exec-shield.
Name: Move vsyscall page out of fixmap into normal vma as per mmapThis causes mysterious hangs when starting init.
Distro is RH FC1, running SysVinit-2.85-5.
dmesg, sysrq-T and .config are at
http://www.zip.com.au/~akpm/linux/patches/stuff/log-vmm - nothing leaps
out.
This is the second time recently when a patch has caused this machine to oddly hang in init. It's possible that there's a bug of some form in that version of init that we'll need to know about and take care of in some fashion.
Well that patch took a machine from working to non-working. Pretty serious
stuff. We should get to the bottom of the problem so we can assess the
risk and impact, no?