Issues

• RISC-V vDSO build error after LLVM commit 90cebef1411617fc3eedd359bdf00cb44b1c2439

  [ARCH] powerpc[ARCH] risc-v[BUG] linux[PATCH] Accepted
  ClangBuiltLinux/linux#2183 · Filter by author nathanchance opened on Sep 11, 2026
  7

• -Wconstant-conversion in drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c

  -Wconstant-conversion[BUG] linuxReported upstream
  ClangBuiltLinux/linux#2182 · Filter by author nathanchance opened on Sep 11, 2026
  1

• -Wconstant-conversion in lib/base64.c

  -Wconstant-conversion[BUG] llvm (main)Reported upstream
  ClangBuiltLinux/linux#2181 · Filter by author nathanchance opened on Sep 11, 2026
  1

• BTI disabled in favor of live patch

  [ARCH] arm64more info neededReported upstream
  ClangBuiltLinux/linux#2180 · Filter by author nickdesaulniers opened on Aug 11, 2026
  1

• thumb2 kernels secondary cpu boot issue

  [ARCH] arm32Reported upstream[TOOL] integrated-as
  ClangBuiltLinux/linux#2177 · Filter by author nickdesaulniers opened on Jul 22, 2026
  1

• [arm] __builtin_trap should emit udf not brk

  [ARCH] arm32[BUG] llvmReported upstream
  ClangBuiltLinux/linux#2176 · Filter by author nickdesaulniers opened on Jul 21, 2026

• LLVM 23 release cycle

  announcement
  ClangBuiltLinux/linux#2175 · Filter by author nathanchance opened on Jul 20, 2026
  5

• Compiler infinite loop with AutoFDO and GCOV

  [BUG] llvmCompiler haunted[FEATURE] AutoFDO
  ClangBuiltLinux/linux#2172 · Filter by author nickdesaulniers opened on Jul 9, 2026

• -Wstringop-overread in drivers/scsi/pm8001/pm8001_hwi.c

  -Wstringop-overread[BUG] linux[PATCH] Accepted
  ClangBuiltLinux/linux#2171 · Filter by author nathanchance opened on Jul 8, 2026
  2

• RISC-V kCFI boot hang after LLVM commit 434e4e15f6a3

  [ARCH] risc-vboot failure[FEATURE] CFI
  ClangBuiltLinux/linux#2170 · Filter by author nathanchance opened on Jul 8, 2026
  8

• -Wframe-larger-than in drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31{,4}/display_mode_vba_31{,4}.c

  -Wframe-larger-than=[BUG] Untriaged
  ClangBuiltLinux/linux#2161 · Filter by author nathanchance opened on May 2, 2026

• -Wframe-larger-than in drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu383-h264.c

  -Wframe-larger-than=[ARCH] loongarch[BUG] linux
  ClangBuiltLinux/linux#2151 · Filter by author nathanchance opened on Feb 17, 2026

• ppc64 boot wrapper linking fails with LLD 21.1.7

  [ARCH] powerpc[TOOL] lld
  ClangBuiltLinux/linux#2146 · Filter by author Gelbpunkt opened on Dec 12, 2025
  3

• -Wincompatible-function-pointer-types-strict in drivers/counter/

  -Wincompatible-function-pointer-types-strict[BUG] linux[PATCH] Rejected
  ClangBuiltLinux/linux#2145 · Filter by author nathanchance opened on Dec 11, 2025

• arm64/loong/riscv: consider turning CONFIG_DRM_AMD_DC_FP back on for clang

  ClangBuiltLinux/linux#2138 · Filter by author peppergrayxyz opened on Oct 20, 2025
  3

• arm64: Improve clang to use zero register for inline asm

  [ARCH] arm64[BUG] llvmenhancementfeature-request
  ClangBuiltLinux/linux#2127 · Filter by author mrutland-arm opened on Oct 8, 2025
  1

• -Wframe-larger-than in drivers/gpu/drm/omapdrm/dss/dispc.c after LLVM commit 055bfc027141bb

  -Wframe-larger-than=[BUG] llvm[WORKAROUND] Submitted
  ClangBuiltLinux/linux#2123 · Filter by author nathanchance opened on Sep 30, 2025

• error: invalid output size for constraint '=a' for ARCH=i386 after e2ffa15b9baa

  [ARCH] x86[BUG] Untriaged
  ClangBuiltLinux/linux#2121 · Filter by author nathanchance opened on Sep 30, 2025
  3

• wrong DCE (__bad_copy_from exists) due to optimization failure under -m32 -fsanitize=alignment fprofile-instr-generate

  [ARCH] x86
  ClangBuiltLinux/linux#2120 · Filter by author kees opened on Aug 26, 2025
  1

• clang-20 built kernel fails to boot with UBSAN_ALIGNMENT=y while gcc-14 built kernel boots ok with UBSAN_ALIGNMENT=y (v6.17-rc2, ppc64)

  ClangBuiltLinux/linux#2119 · Filter by author ernsteiswuerfel opened on Aug 21, 2025
  3

• [clang-21] Possible performance regression with hackbench?

  ClangBuiltLinux/linux#2115 · Filter by author torvic9 opened on Aug 1, 2025

• Clang/LLVM 15 and above fail to boot on Exynos 990/9830

  more info needed
  ClangBuiltLinux/linux#2111 · Filter by author ExtremeXT opened on Jul 19, 2025
  3

• CFI failure at bpf_obj_free_fields

  ClangBuiltLinux/linux#2099 · Filter by author samitolvanen opened on Jul 15, 2025
  4

• objtool: "can't find switch jump table" errors, when compiling with an AutoFDO profile

  [ARCH] x86_64[BUG] Untriaged[FEATURE] AutoFDO[TOOL] objtool
  ClangBuiltLinux/linux#2096 · Filter by author MichaelDeets opened on Jun 26, 2025
  4

• Assertion failed: "start of copy chain MUST be COPY" on RISC-V after using asm goto with outputs

  [ARCH] risc-vasm goto[BUG] llvmCompiler crash (assertions)Reported upstream[WORKAROUND] Submitted
  ClangBuiltLinux/linux#2092 · Filter by author nathanchance opened on May 27, 2025
  5