Dan Williams wrote: > Bobo WL wrote: > > Hi Dan, > > > > Thanks for your reply! > > > > On Mon, Aug 8, 2022 at 11:58 PM Dan Williams <dan.j.willi...@intel.com> > > wrote: > > > > > > What is the output of: > > > > > > cxl list -MDTu -d decoder0.0 > > > > > > ...? It might be the case that mem1 cannot be mapped by decoder0.0, or > > > at least not in the specified order, or that validation check is broken. > > > > Command "cxl list -MDTu -d decoder0.0" output: > > Thanks for this, I think I know the problem, but will try some > experiments with cxl_test first.
Hmm, so my cxl_test experiment unfortunately passed so I'm not reproducing the failure mode. This is the result of creating x4 region with devices directly attached to a single host-bridge: # cxl create-region -d decoder3.5 -w 4 -m -g 256 mem{12,10,9,11} -s $((1<<30)) { "region":"region8", "resource":"0xf1f0000000", "size":"1024.00 MiB (1073.74 MB)", "interleave_ways":4, "interleave_granularity":256, "decode_state":"commit", "mappings":[ { "position":3, "memdev":"mem11", "decoder":"decoder21.0" }, { "position":2, "memdev":"mem9", "decoder":"decoder19.0" }, { "position":1, "memdev":"mem10", "decoder":"decoder20.0" }, { "position":0, "memdev":"mem12", "decoder":"decoder22.0" } ] } cxl region: cmd_create_region: created 1 region > Did the commit_store() crash stop reproducing with latest cxl/preview > branch? I missed the answer to this question. All of these changes are now in Linus' tree perhaps give that a try and post the debug log again?