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. - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html