intel/isa-l

Issues somebody may already be working on are listed last. List everything by date

• win64: crc32_iscsi_avx2 and gf_vect_mul_avx2_gfni clobber callee-saved xmm registers

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  Difficulty 2/5 1-3 hours Newbie friendliness 78/100

  intel/isa-l#466 · Opened Oct 21, 2026

• how to debug avx512 gfni erasure nasm code in Linux?

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  intel/isa-l#429 · 9 comments · Opened Jul 13, 2026

• crc: Using gp and tp in riscv64 may cause problems

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  intel/isa-l#428 · Opened Jul 2, 2026

• Create a generic dispatched indexed version of ec_encode_data

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  Difficulty 5/5 Over a week Newbie friendliness 45/100

  intel/isa-l#417 · Opened May 25, 2026

• ISA-L Needs LZ4

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#414 · Opened May 14, 2026

• Maybe a bug in isal_inflate_stateless()

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  sighting

  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  intel/isa-l#405 · 11 comments · Opened Apr 27, 2026

• Aarch64 build issues

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  sighting

  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  intel/isa-l#398 · 9 comments · Opened Mar 3, 2026

• GFNI with XMM registers over 3 times as fast as SSE

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  intel/isa-l#395 · 11 comments · Opened Feb 26, 2026

• ec_base_aliases.c ec_init_tables() needlessly calls ec_init_tables_base(), which should be renamed to ec_init_tables_sse().

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  Difficulty 2/5 1-3 hours Newbie friendliness 48/100

  intel/isa-l#394 · 3 comments · Opened Feb 24, 2026

• erasure code - erasure_code_perf.c only checks for erasure corrections in data rows, not parity rows.

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  enhancement

  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  intel/isa-l#383 · 6 comments · Opened Jan 24, 2026

• Polynomial Code for ISA-L erasure code - optional faster encode - decode unchanged

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#378 · 8 comments · 1 reaction · Opened Dec 7, 2025

• Request some documentation for erasure code (or provide a link to an external source)

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  Difficulty 2/5 1-3 hours Newbie friendliness 45/100

  intel/isa-l#377 · Opened Dec 6, 2025

• igzip shim error in java app with java.util.zip.ZipException: invalid entry compressed size (expected 2 but got 8 bytes)

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  intel/isa-l#372 · 1 comment · Opened Nov 9, 2025

• Add brotli or zstd as compression algorithms

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#364 · Opened Sep 20, 2025

• Is AVX512 used in CRC32C acceleration?

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  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  intel/isa-l#360 · 2 comments · Opened Sep 1, 2025

• Unable to build isa-l with `GCC15` and `-mavx10.1` flag

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  intel/isa-l#330 · 10 comments · Opened May 28, 2025

• make fails on Cygwin

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  Difficulty 2/5 1-3 hours Newbie friendliness 48/100

  intel/isa-l#322 · Opened Apr 8, 2025

• Makefile is not parallelizable

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  intel/isa-l#321 · 3 comments · Opened Apr 8, 2025

• why crc16_t10dif() may make mistakes but crc16_t10dif_copy() running OK in file storage test ?

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  intel/isa-l#293 · Opened Jul 29, 2024

• AVX512 detection failed when cpu supports AVX512

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  intel/isa-l#291 · 3 comments · 1 reaction · Opened Jul 11, 2024

• raid: why does the simd version xor_gen not provide an entry for loop64?

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#284 · Opened Mar 15, 2024

• how use raid lib to recover lost data?

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#275 · Opened Jan 30, 2024

• Failed to decompress gz file which has multi-header

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  Difficulty 2/5 1-3 hours Newbie friendliness 42/100

  intel/isa-l#274 · 2 reactions · Opened Jan 24, 2024

• Looking for ARM/PowerPC owner/maintainers

  May be free again @pablodelara claimed this 1041 days ago, and no pull request is open. Open

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  help wanted

  intel/isa-l#261 · 16 comments · 1 reaction · 1 assignee · Opened Dec 19, 2023

• Benchmark: isa-l vs zlib, zlib-ng, libdeflate, brotli, zstd

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  intel/isa-l#256 · 3 reactions · Opened Sep 2, 2023

• igzip for containerd become slow

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  intel/isa-l#255 · Opened Aug 29, 2023

• Add support for inflate flush points

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  intel/isa-l#254 · 1 reaction · Opened Aug 24, 2023

• Question about isa-l inflate read_in_length when state->block_state = ISAL_BLOCK_CODED.

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  question

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  intel/isa-l#251 · 1 comment · 1 reaction · Opened Jul 27, 2023

• How to enable igzip multi-threaded run to improve compression throughput, -T parameter does not work

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  intel/isa-l#250 · 11 comments · Opened Jul 19, 2023

• zlib-ng performs adler32 and crc32 checksums faster

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#246 · Opened Jun 30, 2023

• ec_encode_data_update gives wrong result when output buffers are not zero-initialized

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  question

  Difficulty 2/5 1-3 hours Newbie friendliness 55/100

  intel/isa-l#244 · 1 comment · Opened May 16, 2023

• RISCV CPU supported?

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  question

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#239 · 2 comments · 1 reaction · Opened Apr 24, 2023

• Why wider stripe leads to lower encoding throughput even with same parity?

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  question

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#237 · 2 comments · Opened Mar 31, 2023

• raid: about the input parameter restriction conditions in the headfile raid.h

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  intel/isa-l#236 · 3 comments · Opened Mar 28, 2023

• How to know whether Xeon CPU supports ISA-l？

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  question

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  intel/isa-l#232 · 4 comments · Opened Jan 11, 2023

• How to go through the call stack of ec_encode_data (in order to find slice size)?

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  question

  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  intel/isa-l#228 · 3 comments · Opened Nov 15, 2022

• macOS "building for macOS-x86_64 but attempting to link with file built for unknown-arm64"

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  Difficulty 3/5 1-2 days Newbie friendliness 38/100

  intel/isa-l#223 · 7 comments · Opened Aug 11, 2022

• gf_mul duplicate symbol clash with libcrypto

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  intel/isa-l#217 · 4 comments · Opened Jun 21, 2022

• isal_inflate with crc_flag==ISAL_DEFLATE eats extra bytes.

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  intel/isa-l#211 · 2 comments · Opened Mar 31, 2022

• Had trouble in using isal_deflate_set_dict

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  intel/isa-l#206 · 9 comments · Opened Mar 16, 2022

• Will isa-l support zstd in the future?

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  question

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  intel/isa-l#205 · 3 comments · Opened Mar 16, 2022

• Will IGZIP provide zlib-compatible API?

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  intel/isa-l#192 · 18 comments · 1 reaction · Opened Dec 1, 2021

• Get incorrect results by using the Multi-Hash-SHA1 API

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  intel/isa-l#191 · 1 comment · Opened Nov 19, 2021

• Fails to build on i386 and s390x

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  intel/isa-l#188 · 11 comments · 1 reaction · Opened Nov 5, 2021

• igzip compress & decompress API

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 30/100

  intel/isa-l#181 · 2 comments · Opened Aug 26, 2021

• Zlib header stores incorrect wbits value when hist_bits is set to other values than 15.

  May be free again A pull request for this issue was closed without being merged. Open

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  intel/isa-l#177 · 9 comments · Opened Jul 23, 2021

• Is there any hardware CRC instruction on Intel's processors to accelerate CRC in ISA-L?

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  intel/isa-l#170 · 10 comments · Opened Jan 1, 2021

• Remove x18 usages on Arm64 assembly code

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  question

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  intel/isa-l#167 · 1 comment · Opened Dec 7, 2020

• "Sanitizing undefined behaviour" test fail with clang-10

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  intel/isa-l#166 · 2 comments · Opened Dec 7, 2020

• How can I install ISA-L library on mac or windows?

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  question

  Difficulty 3/5 1-2 days Newbie friendliness 20/100

  intel/isa-l#165 · 4 comments · Opened Nov 27, 2020