Messages in this thread |  | | From | Mariusz Kozlowski <> | Subject | Re: 2.6.24-rc5-mm1: problems with cat /proc/kpageflags | Date | Sun, 16 Dec 2007 12:40:53 +0100 |
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> 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
then again:
BUG: soft lockup - CPU#0 stuck for 11s! [sshd:3242] ... TPC: spitfire_xcall_helper+0xa0/0x100 ... RPC: spitfire_xcall_helper+0xac/0x100 ... I7: flush_dcache_page_all+0x1a4/0x1e0
or:
BUG: soft lockup - CPU#0 stuck for 11s! [sshd:3242] ... TPC: tick_get_tick+0xc/0x20 ... RPC: __handle_softirq_continue+0x20/0x24 ... I7: __delay+0x2c/0x60
Box is unusable. Easy to reproduce - every time.
Regards,
Mariusz
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