riscv: Support BUG() in kernel module

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The kernel module is loaded into vmalloc region which is located below
to the PAGE_OFFSET. Hence the condition, pc < PAGE_OFFSET, in the
is_valid_bugaddr() will filter out all trap exceptions triggered
by kernel module. To support BUG() in kernel module, the condition is
changed to pc < VMALLOC_START.

Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

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Vincent Chen 2019-03-05 11:23:35 +08:00 • committed by Palmer Dabbelt

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commit 9a6e7af02f

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arch/riscv/kernel/traps.c

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