diff options
Diffstat (limited to 'arch/arm/lib/backtrace.S')
| -rw-r--r-- | arch/arm/lib/backtrace.S | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/lib/backtrace.S b/arch/arm/lib/backtrace.S index 872f658638d9..293a2716bd20 100644 --- a/arch/arm/lib/backtrace.S +++ b/arch/arm/lib/backtrace.S @@ -98,12 +98,20 @@ for_each_frame: tst frame, mask @ Check for address exceptions cmp sv_fp, frame @ next frame must be mov frame, sv_fp @ above the current frame +#ifdef CONFIG_IRQSTACKS + @ + @ Kernel stacks may be discontiguous in memory. If the next + @ frame is below the previous frame, accept it as long as it + @ lives in kernel memory. + @ + cmpls sv_fp, #PAGE_OFFSET +#endif bhi for_each_frame 1006: adr r0, .Lbad mov r1, loglvl mov r2, frame - bl printk + bl _printk no_frame: ldmfd sp!, {r4 - r9, pc} ENDPROC(c_backtrace) |