https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=201664
Bug ID: 201664
Summary: [build] cannot build 'sort' using
WITH_SORT_THREADS=yes
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: freebsd-bugs@FreeBSD.org
Reporter: accorn...@fastmail.fm
CC: gcoo...@freebsd.org, ma...@freebsd.org
I hit this error using a -CURRENT checkout from today. All that's needed to
reproduce this is building usr.bin/sort with "WITH_SORT_THREADS=yes" in the
environment or /etc/src.conf
# clang -v
FreeBSD clang version 3.6.0 (tags/RELEASE_360/final 230434) 20150225
Target: x86_64-unknown-freebsd11.0
Thread model: posix
--- radixsort.o ---
cc -O2 -pipe -DSORT_THREADS -g -std=gnu99 -fstack-protector -Wsystem-headers
-Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes
-Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings
-Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline
-Wnested-externs -Wredundant-decls -Wold-style-definition -Wno-pointer-sign
-Wmissing-variable-declarations -Wthread-safety -Wno-empty-body
-Wno-string-plus-int -Wno-unused-const-variable -Qunused-arguments -c
/usr/home/acornehl/git/freebsd/usr.bin/sort/radixsort.c -o radixsort.o
/usr/home/acornehl/git/freebsd/usr.bin/sort/radixsort.c:144:17: error: mutex
'g_ls_mutex' is not held on every path through here
[-Werror,-Wthread-safety-analysis]
new_ls->next = g_ls;
^
/usr/home/acornehl/git/freebsd/usr.bin/sort/radixsort.c:141:3: note: mutex
acquired here
pthread_mutex_lock(&g_ls_mutex);
^
/usr/home/acornehl/git/freebsd/usr.bin/sort/radixsort.c:149:3: error: releasing
mutex 'g_ls_mutex' that was not held [-Werror,-Wthread-safety-analysis]
pthread_mutex_unlock(&g_ls_mutex);
^
2 errors generated.
*** [radixsort.o] Error code 1
make[4]: stopped in /usr/home/acornehl/git/freebsd/usr.bin/sort
1 error
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