[parisc-linux] kernel BUG at mm/shmem.c:585!

[Grant Grundler]

Just booted 2.6.1-pa9 (-pa8 + SBA change) and got:

kernel BUG at mm/shmem.c:585!
Kernel addresses on the stack:
 [<000000001016dc30>]  [<0000000010125cd8>]  [<0000000010111cd4>]  [<000000001010be4c>] 
 [<000000001010b094>]

those correspond to:
	0x1016dc30 unmap_page_range+a0
	0x10125cd8 sys32_rt_sigaction+90
	0x10111cd4 sys_mmap2+14
	0x1010be4c syscall_exit+0
	0x1010b094 intr_check_sig+0

This is on a500 (hppa64) with:
grundler <509>df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md2               1539008   1257752    265624  83% /
/dev/md3               6683304   3688352   2927052  56% /home
/dev/md0              52507076   3455824  46384048   7% /usr/src
grundler <510>mount
/dev/md2 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/md3 on /home type ext3 (rw,errors=remount-ro)
/dev/md0 on /usr/src type ext3 (rw,errors=remount-ro)


grant