Segfault when called from make

[ole-tange]

Add this to Makefile:

test:
echo > foo
./pxz foo

$ make test
echo > foo
./pxz foo
make: *** [test] Segmentation fault

[waffleking32]

I ran into this too and it looks like it is caused by 'make' changing the stack size ulimit to unlimited. Here is a repro that doesn't involve 'make'.

touch foo
ulimit -s unlimited
pxz foo

Running with strace give this.

getrlimit(RLIMIT_STACK, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
mmap(NULL, 4611686018427392000, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
brk(0)                                  = 0x211e000
brk(0x400000000213f000)                 = 0x211e000
mmap(NULL, 4611686018427523072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
mmap(NULL, 134217728, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x2aaf58c0a000
munmap(0x2aaf58c0a000, 54484992)        = 0
munmap(0x2aaf60000000, 12623872)        = 0
mprotect(0x2aaf5c000000, 135168, PROT_READ|PROT_WRITE) = 0
mmap(NULL, 4611686018427392000, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0} ---
+++ killed by SIGSEGV (core dumped) +++
Segmentation fault (core dumped)

[waffleking32]

You can work around this problem in your Makefile like this.

bash -c "ulimit -s 8192; pxz ..."

[ole-tange]

Good there is a work-around, but it is not intuitive to the user that he should use this work-around. Can it be fixed so pxz does the work-around by itself?