[Bug malloc/20066] New: MALLOC_CHECK_=3 malloc/tst-malloc-backtrace hangs in lock acqusition

["fweimer at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=20066

            Bug ID: 20066
           Summary: MALLOC_CHECK_=3 malloc/tst-malloc-backtrace hangs in
                    lock acqusition
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: malloc
          Assignee: unassigned at sourceware dot org
          Reporter: fweimer at redhat dot com
  Target Milestone: ---
             Flags: security-

If MALLOC_CHECK_=3 is set in the environment, tst-malloc-backtrace hangs.  This
is probably yet another self-deadlock.

[pid 10277] writev(2, [{"*** Error in `", 14}, {"malloc/tst-malloc-backtrace",
27}, {"': ", 3}, {"malloc(): memory corruption", 27}, {": 0x", 4},
{"0000000001824010", 16}, {" ***\n", 5}], 7) = 96
[pid 10277] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x7f85cbabe000
[pid 10277] open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
[pid 10277] fstat(3, {st_mode=S_IFREG|0644, st_size=35204, ...}) = 0
[pid 10277] mmap(NULL, 35204, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f85cbaaa000
[pid 10277] close(3)                    = 0
[pid 10277] futex(0x7f85cb67db40, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
[pid 10276] <... wait4 resumed> 0x7ffdd493b710, 0, NULL) = ? ERESTARTSYS (To be
restarted if SA_RESTART is set)
[pid 10276] --- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---

-- 
You are receiving this mail because:
You are on the CC list for the bug.