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 jeykf68A 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> It appears that commit 58c5d0d6d522112577c7eeb71d382ea642ed7be4 causes > another regression of allocations with MAP_32BIT. > Reverting it fixes the reproducer from > https://lore.kernel.org/linux-mm/cb8dc31a-fef2-1d09-f133-e9f7b9f9e77a@son= y.com/ >=20 > Do you think this commit is somewhat safe to revert? No, don't do that. Add this [1] instead. The patch is currently in mm-unstable and will make its way though the normal channels to stable and mainline [1] https://lore.kernel.org/linux-mm/20230505145829.74574-1-zhangpeng.00@by= tedance.com/ Thanks, Liam >=20 > The following may be superfluous, but adds some context and might help > someone > find this thread. It merely confirms to the observation of this > regression in > https://lore.kernel.org/linux-mm/e6108286ac025c268964a7ead3aab9899f9bc6e9= .camel@spotco.us/ >=20 > From what I can tell it also fixes my own use case, and >=20 > =A0- The program I maintain, > =A0=A0 https://github.com/hercules-ci/hercules-ci-agent/issues/514 >=20 > =A0- Another program, also Haskell: > =A0=A0 https://github.com/aristanetworks/nix-serve-ng/issues/27 >=20 > =A0- An FPGA interface process. I've found them because they list the sa= me > =A0=A0 commit id on their blog. > =A0=A0 https://jia.je/software/2023/05/06/linux-regression-vivado-en/ >=20 >=20 >=20 > On 3/2/23 19:43, Liam R. Howlett wrote: > > * Snild Dolkow [230302 10:33]: > >> After upgrading a machine from 5.17.4 to 6.1.12 a couple of weeks ago,= I > >> started getting (inconsistent) failures when building Android: > >> While it claims to be using 0x22 (MAP_PRIVATE | MAP_ANONYMOUS) for the > >> flags, it really uses 0x40 (MAP_32BIT) as well, as shown by strace: > >> >=20 > The same applies to the dynamic linker in the GHC Haskell runtime system. >=20 > It also uses MAP_32BIT, in its linker, and reports the error >=20 > ghc: mmap 4096 bytes at (nil): Cannot allocate memory >=20 >=20 > I hope this was a somewhat useful contribution to the regressions > thread. (also hi, I'm new here) >=20 > Cheers, >=20 > Robert Hensing >=20 >=20