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zfs crash on amd64
I would like to ask you for a help with one strange issue on a amd64
with a zfs. On amd64 zfs panics during zpool create. Backtrace + panic
message can be found here. I got several other panics(different
backtrace) but most of them was somewhat related with SHA256Transform.
I have added some printfs to the zio_checksum_SHA256 and everything
looks fine, but when panic happens H is NULL. I'm really not sure
how is this possible, but I have checked it twice. PAnic happens here
. Panic instruction is this
movl 0(%rax), %eax
I checked rax register from ddb and it is set to 0, which is strange
because when you look at debug printfs socend address printed in it is
address ofH passed to SHA256Transform. I talked with joerg@ and he
suggested that it can be some problem with stack overflow on amd64.
This problem can be seen on i386 on machines with >3Gb. I would like
to enlarge default kernel stack size on amd64 to try to fix this
issue. Anyone has an idea how can I do that ?
I'm using DIAGNOSTIC modules build with -O0 -g.
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