Re: [PATCH v2 3/3] tcg: Avoid double lock if page tables happen to be in mmio memory.

On Mon, 19 Feb 2024 at 17:33, Jonathan Cameron wrote: > > On i386, after fixing the page walking code to work with pages in > MMIO memory (specifically CXL emulated interleaved memory), > a crash was seen in an interrupt handling path. > > Suggested-by: Peter Maydell > Signed-off-by: Jonathan C

[PATCH v2 3/3] tcg: Avoid double lock if page tables happen to be in mmio memory.

On i386, after fixing the page walking code to work with pages in MMIO memory (specifically CXL emulated interleaved memory), a crash was seen in an interrupt handling path. Useful part of backtrace 7 0x55ab1929 in bql_lock_impl (file=0x56049122 "../../accel/tcg/cputlb.c", line=2033