6.14-stable review patch. If anyone has any objections, please let me know.
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From: Ingo Molnar mingo@kernel.org
[ Upstream commit 1400c87e6cac47eb243f260352c854474d9a9073 ]
Due to pending percpu improvements in -next, GCC9 and GCC10 are crashing during the build with:
lib/zstd/compress/huf_compress.c:1033:1: internal compiler error: Segmentation fault 1033 | { | ^ Please submit a full bug report, with preprocessed source if appropriate. See file:///usr/share/doc/gcc-9/README.Bugs for instructions.
The DYNAMIC_BMI2 feature is a known-challenging feature of the ZSTD library, with an existing GCC quirk turning it off for GCC versions below 4.8.
Increase the DYNAMIC_BMI2 version cutoff to GCC 11.0 - GCC 10.5 is the last version known to crash.
Reported-by: Michael Kelley mhklinux@outlook.com Debugged-by: Ard Biesheuvel ardb@kernel.org Signed-off-by: Ingo Molnar mingo@kernel.org Cc: https://lore.kernel.org/r/SN6PR02MB415723FBCD79365E8D72CA5FD4D82@SN6PR02MB41... Cc: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- lib/zstd/common/portability_macros.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/zstd/common/portability_macros.h b/lib/zstd/common/portability_macros.h index 0e3b2c0a527db..0dde8bf56595e 100644 --- a/lib/zstd/common/portability_macros.h +++ b/lib/zstd/common/portability_macros.h @@ -55,7 +55,7 @@ #ifndef DYNAMIC_BMI2 #if ((defined(__clang__) && __has_attribute(__target__)) \ || (defined(__GNUC__) \ - && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)))) \ + && (__GNUC__ >= 11))) \ && (defined(__x86_64__) || defined(_M_X64)) \ && !defined(__BMI2__) # define DYNAMIC_BMI2 1