On (24/11/30 12:21), Thomas Gleixner wrote:
WARNING: vmlinux.o(__ex_table+0x447c): Section mismatch in reference from the (unknown reference) (unknown) to the (unknown reference) .irqentry.text:(unknown) The relocation at __ex_table+0x447c references section ".irqentry.text" which is not in the list of authorized sections.
WARNING: vmlinux.o(__ex_table+0x4480): Section mismatch in reference from the (unknown reference) (unknown) to the (unknown reference) .irqentry.text:(unknown) The relocation at __ex_table+0x4480 references section ".irqentry.text" which is not in the list of authorized sections.
FATAL: modpost: Section mismatches detected.
Specifically because of wrmsrl.
I'm aware of the section mismatch errors on linux-5.4 (I know), not aware of any other stable versions (but I haven't checked). Is this something specific to linux-5.4?
So it seems the compiler inlines the inner guts of sysvec_apic_timer_interrupt() and local_apic_timer_interrupt().
Can you try the patch below?
That works, as far as I can tell, thank you!