Messages in this thread | | | Date | Sun, 16 Dec 2007 12:27:20 -0600 | From | Matt Mackall <> | Subject | Re: 2.6.24-rc5-mm1: problems with cat /proc/kpageflags |
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On Sun, Dec 16, 2007 at 12:40:53PM +0100, Mariusz Kozlowski wrote: > > cat /proc/kpageflags on sparc64 causes the box to lock. > > I can not write on any terminal - but I can issue sysrqs and switch > > between consoles. > > > > cat process hangs in read(3, ... > > cat /proc/kpagecount produces similar symptoms. box is locked - sysrq-w sshd trace: > > __down > __down_interruptible > kobject_get > lock_kernel > chrdev_open > __dentry_open > nameidata_to_filp > open_pathname > do_sys_open > sparc32_open > linux_sparc_syscall32
Perhaps this is related to sparsemem.
Can you change line 710 of fs/proc/proc_misc.c to:
ppage = NULL;
..and see if it still breaks?
-- Mathematics is the supreme nostalgia of our time.
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