65d1e3ddea
Mainline crashes as follows when running nios2 images.
On node 0 totalpages: 65536
free_area_init_node: node 0, pgdat c8408fa0, node_mem_map c8726000
Normal zone: 512 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 65536 pages, LIFO batch:15
Unable to handle kernel NULL pointer dereference at virtual address 00000000
ea = c8003cb0, ra = c81cbf40, cause = 15
Kernel panic - not syncing: Oops
Problem is seen because get_cycles() is called before the timer it depends
on is initialized. Returning 0 in that situation fixes the problem.
Fixes: 33d72f3822d7 ("init/main.c: extract early boot entropy from the ..")
Cc: Laura Abbott <labbott@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
|
||
|---|---|---|
| .. | ||
| .gitignore | ||
| asm-offsets.c | ||
| cpuinfo.c | ||
| entry.S | ||
| head.S | ||
| insnemu.S | ||
| irq.c | ||
| kgdb.c | ||
| Makefile | ||
| misaligned.c | ||
| module.c | ||
| nios2_ksyms.c | ||
| process.c | ||
| prom.c | ||
| ptrace.c | ||
| setup.c | ||
| signal.c | ||
| sys_nios2.c | ||
| syscall_table.c | ||
| time.c | ||
| traps.c | ||
| vmlinux.lds.S | ||