On Thu, Nov 27, 2025 at 03:05:29PM +0800, Stephen Zhang wrote: > No, they are not using bcache.
Then please figure out how bio_chain_endio even gets called in this setup. I think for mainline the approach should be to fix bcache and eorfs to not call into ->bi_end_io and add a BUG_ON() to bio_chain_endio to ensure no new callers appear. I > If there are no further objections or other insights regarding this issue, > I will proceed with creating a v2 of this series. Not sure how that is helpful. You have a problem on a kernel from stone age, can't explain what actually happens and propose something that is mostly a no-op in mainline, with the callers that could even reach the area being clear API misuse.
