On 09/08/2018 00:22, Alexis Murzeau wrote: > On 08/08/2018 00:59, Alexis Murzeau wrote: >> severity 903514 important >> thanks >> >>> Reassigning to glibc with affects on openblas and gimp as this is caused >>> by a deadlock inside glibc. >> >> Done. >> >> Lowering severity as this does not render any package unusable by >> themselves, but only a combination of them (GIMP + OpenBLAS). >> >> I think a workaround solution against GIMP OpenBLAS should be done as >> I'm not sure a good solution will emerge in glibc given attempts done in >> the past. The work to be done seems non trivial. >> >> My though on possible solutions: >> * Add a breaks between GIMP and OpenBLAS >> * Disable TLS in OpenBLAS build (if possible, but this would cause a >> performance loss for users that use OpenBLAS without gimp) >> * Add a delay in GIMP to not load then close libraries too fast (so >> OpenBLAS threads are fully initialized when dl_close is called on it) >> > > Hi, > > I've posted a issue on openblas upstream project [0] and they suggested > some solutions. > One of them is to disable the use of compiler supported TLS and instead > use pthreads. > > I tested this and it seems to fix deadlocks while starting gimp (I tried > without arguments, with a non existing file and with an existing file). > > I've pushed a merge request with the patch at [1]. > I've also asked openblas upstream if this patch could be a good solution. > > In that case would it be possible to have this patch tested for ones who > have major instabilities with gimp + openblas ? > > Thanks :) >
Hi, I've updated the merge request [0] with the upstream proposed patch [1]. @openblas maintainers, maybe someone can build a package with this patch and upload to experimental so others can check if gimp works fine with it ? I've myself tested it and gimp does not deadlock. I can provide a binary package that include this patch, but I'm not sure this is the best thing to do (I'm not the official maintainer, nor know a good place to upload it). [0] https://salsa.debian.org/science-team/openblas/merge_requests/1 [1] https://github.com/xianyi/OpenBLAS/pull/1726 -- Alexis Murzeau PGP: B7E6 0EBB 9293 7B06 BDBC 2787 E7BD 1904 F480 937F
signature.asc
Description: OpenPGP digital signature
