diff options
| author | Geert Uytterhoeven <[email protected]> | 2017-10-03 19:14:38 +0100 |
|---|---|---|
| committer | Russell King <[email protected]> | 2017-10-14 15:08:33 +0100 |
| commit | 59b6359dd92d18f5dc04b14a4c926fa08ab66f7c (patch) | |
| tree | a47e00038f9641bbd203958b48c7467133c82c83 /net/unix/sysctl_net_unix.c | |
| parent | 1bb078330b4f0836b5b12365cd8bf68d5f3bbff8 (diff) | |
ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel()
If CONFIG_DEBUG_LOCK_ALLOC=y, the kernel log is spammed with a few
hundred identical messages:
unwind: Unknown symbol address c0800300
unwind: Index not found c0800300
c0800300 is the return address from the last subroutine call (to
__memzero()) in __mmap_switched(). Apparently having this address in
the link register confuses the unwinder.
To fix this, reset the link register to zero before jumping to
start_kernel().
Fixes: 9520b1a1b5f7a348 ("ARM: head-common.S: speed up startup code")
Suggested-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Geert Uytterhoeven <[email protected]>
Acked-by: Nicolas Pitre <[email protected]>
Signed-off-by: Russell King <[email protected]>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions