On Thu, Oct 01, 2026 at 01:03:10PM +0200, Nathan Chancellor wrote: > On Thu, Oct 01, 2026 at 12:48:10PM +0200, Jason A. Donenfeld wrote: > > Does this commit seem okay with you? I used the diff you sent below and > > adjusted the commit message: > > https://git.zx2c4.com/linux-rng/commit/?id=56ff95ee85715047eb5b5220243778af657778c8 > > Yeah, that seems fine to me, thanks for taking care of it!
Can you adjust the LLVM value by one from 4294967295 to 4294967294? ~0U is actually a special value, so we hit an assertion in the SystemZ backend. https://github.com/llvm/llvm-project/blob/3f48e22a1f321d5d3341bd812803694cea588785/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp#L9547 https://github.com/llvm/llvm-project/blob/3f48e22a1f321d5d3341bd812803694cea588785/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp#L1470-L1471 clang: llvm/lib/Target/SystemZ/SystemZISelLowering.cpp:1471: virtual bool llvm::SystemZTargetLowering::findOptimalMemOpLowering(LLVMContext &, std::vector<EVT> &, unsigned int, const MemOp &, unsigned int, unsigned int, const AttributeList &, EVT *) const: Assertion `Limit != ~0U && "Expected EmitTargetCodeForMemXXX() to handle AlwaysInline cases."' failed. PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and dumped files. Stack dump: 0. Program arguments: ... 1. <eof> parser at end of file 2. Code generation 3. Running pass 'Function Pass Manager' on module 'arch/s390/kernel/vdso/vgetrandom.c'. 4. Running pass 'SystemZ DAG->DAG Pattern Instruction Selection' on function '@__kernel_getrandom' ... -- Cheers, Nathan
