Expected Behavior

mmseqs2 successfully linclust a 49 sequence protein fasta

Current Behavior

mmseqs2 complain Kmer array overflow

Steps to Reproduce (for bugs)

~/seqdb/JGI/script/mmseqs2/bin/mmseqs createdb DB.fasta DB -v 1
mkdir tmp
~/seqdb/JGI/script/mmseqs2/bin/mmseqs linclust DB DB_clu tmp -c 0.9 --cov-mode 1 --threads 1 -v 1

MMseqs Output (for bugs)

Kmer array overflow. currKmerArrayOffset=0, kmerBufferPos=1024, kmerArraySize=1024.
Error: kmermatcher died

Context

The input file DB.fasta and all intermediate files are attached.
linclust_3300021621.zip

Your Environment

Include as many relevant details about the environment you experienced the bug in.

• Git commit used (The string after "MMseqs Version:" when you execute MMseqs without any parameters):
  MMseqs2 Version: 481696b5f426f991211894d8a855bf9d60065c8f
• Which MMseqs version was used (Statically-compiled, self-compiled, Homebrew, etc.):
  https://mmseqs.com/latest/mmseqs-linux-sse41.tar.gz
• Server specifications (especially CPU support for AVX2/SSE and amount of system memory):
  fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt
• Operating system and version:

LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID: CentOS
Description:    CentOS Linux release 7.7.1908 (Core)
Release:        7.7.1908
Codename:       Core