[tor-bugs] #21045 [Core Tor/Tor]: Silent crash at 80% Bootstrap Tor 0.2.9.8 OSX10.4

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#21045: Silent crash at 80% Bootstrap Tor 0.2.9.8 OSX10.4
------------------------------+----------------------------
     Reporter:  downie        |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:  Tor: 0.2.9.8
     Severity:  Normal        |   Keywords:  OSX Tiger 10.4
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+----------------------------
 Since upgrading to Tor 0.2.9.8, Tor crashes on my OSX10.4 machine at 80%
 bootstrap.
 Some debug-level lines:
 {{{
 Dec 20 23:58:45.000 [notice] Bootstrapped 80%: Connecting to the Tor
 network
 ...
 Dec 20 23:58:46.000 [info] connection_ap_make_link(): Making internal
 direct tunnel to [scrubbed]:443 ...
 Dec 20 23:58:46.000 [debug] connection_add_impl(): new conn type Socks,
 socket -1, address (Tor_internal), n_conns 5.
 Dec 20 23:58:46.000 [info] connection_ap_make_link(): ... application
 connection created and linked.
 Dec 20 23:58:46.000 [debug] connection_add_impl(): new conn type
 Directory, socket -1, address 195.154.164.243, n_conns 6.
 }}}

  Those are the last four entries in the log.
 This is a bridge/client, with some exit node restrictions: torrc
 {{{
 ControlPort 9051
 ExcludeNodes
 Qwerty,freeMe69,JustANode,AIVD,MIVD,afe5ab469c027cf3deec72ae6873ba62ae735414,dc914d754b27e1a0f196330bec599bc9d640f30c
 ExitPolicy reject *:*
 HashedControlPassword 16:xxxxxxx
 Nickname xxxxxxxxxxx
 ORPort auto
 ExtORPort auto
 BridgeRelay 1
 ServerTransportPlugin obfs3 exec /usr/bin/obfsproxy managed
 StrictNodes 1
 ExcludeExitNodes {gb}
 }}}

 It was compiled thusly:
 {{{
 $ unset LDFLAGS
 $ CFLAGS="-O -g -mmacosx-version-min=10.4 -arch ppc"
 $ ./configure --prefix=/Library/Tor --with-libevent-dir=/opt/local --with-
 openssl-dir=/opt/local --disable-dependency-tracking CC="gcc-4.0"
 $ make
 }}}

  I noticed lots of warnings about shadow declarations and implicit
 truncation from 64 bit to 32 bit.

 Console.log says (and this looks more like the time I started Tor rather
 than when it crashed):
 {{{
 Dec 20 23:42:25 Power-Mac-G4 crashdump[2083]: tor crashed
 Dec 20 23:42:25 Power-Mac-G4 crashdump[2083]: crash report written to:
 /Users/tor/Library/Logs/CrashReporter/tor.crash.log
 }}}

 {{{
 Host Name:      xxxxxxxxxx
 Date/Time:      2016-12-20 23:42:13.859 +0000
 OS Version:     10.4.11 (Build 8S165)
 Report Version: 4

 Command: tor
 Path:    /usr/bin/tor
 Parent:  bash [2081]

 Version: ??? (???)

 PID:    2082
 Thread: 0

 Exception:  EXC_BAD_INSTRUCTION (0x0002)
 Code[0]:    0x00000002
 Code[1]:    0x0120a4e0


 Thread 0 Crashed:
 0   libcrypto.1.0.0.dylib       0x0120a4e0 OPENSSL_ppc64_probe + 0
 1   libcrypto.1.0.0.dylib       0x0120a744 OPENSSL_cpuid_setup + 196
 2   libcrypto.1.0.0.dylib       0x012a6724
 OPENSSL_add_all_algorithms_noconf + 20
 3   tor                         0x00121360 crypto_early_init + 64
 (crypto.c:3355)
 4   tor                         0x0000493c tor_init + 188 (main.c:2782)
 5   tor                         0x00005e30 tor_main + 80 (main.c:3461)
 6   tor                         0x00002250 main + 16 (tor_main.c:35)
 7   tor                         0x00001e4c _start + 760
 8   tor                         0x00001b50 start + 48

 Thread 0 crashed with PPC Thread State 64:
   srr0: 0x000000000120a4e0 srr1: 0x000000000208f030
 vrsave: 0x0000000000000000
     cr: 0x24000222          xer: 0x0000000000000004   lr:
 0x000000000120a744  ctr: 0x00000000900019c0
     r0: 0x0000000000000000   r1: 0x00000000bffff1b0   r2:
 0x000000000000001a   r3: 0x0000000000000000
     r4: 0x0000000000000000   r5: 0x000000000120a738   r6:
 0x0000000001365d98   r7: 0x00000000000000ff
     r8: 0x0000000001365d84   r9: 0x00000000fffff927  r10:
 0x000000000000000e  r11: 0x0000000022000222
    r12: 0x00000000900019c0  r13: 0x0000000000000000  r14:
 0x0000000000000000  r15: 0x0000000000000000
    r16: 0x0000000000000000  r17: 0x0000000000000000  r18:
 0x0000000000000000  r19: 0x0000000000000000
    r20: 0x00000000bffff884  r21: 0x000000000000000c  r22:
 0x0000000000000000  r23: 0x0000000000000000
    r24: 0x0000000000000000  r25: 0x000000000000000c  r26:
 0x0000000000201330  r27: 0x00000000bffff8b8
    r28: 0x00000000bffff884  r29: 0x00000000bffff320  r30:
 0x000000000136a688  r31: 0x000000000120a688

 Binary Images Description:
     0x1000 -   0x1f5fff tor     /usr/bin/tor
   0x607000 -   0x618fff libz.1.dylib    /opt/local/lib/libz.1.dylib
   0x61c000 -   0x64efff libevent-2.0.5.dylib
 /opt/local/lib/libevent-2.0.5.dylib
   0x65b000 -   0x6abfff libssl.1.0.0.dylib
 /opt/local/lib/libssl.1.0.0.dylib
  0x1205000 -  0x1351fff libcrypto.1.0.0.dylib
 /opt/local/lib/libcrypto.1.0.0.dylib
 0x8fe00000 - 0x8fe52fff dyld 46.16      /usr/lib/dyld
 0x90000000 - 0x901bcfff libSystem.B.dylib       /usr/lib/libSystem.B.dylib
 0x90214000 - 0x90219fff libmathCommon.A.dylib
 /usr/lib/system/libmathCommon.A.dylib
 0x91434000 - 0x9143ffff libgcc_s.1.dylib        /usr/lib/libgcc_s.1.dylib
 }}}

 Not too much detail in the body of the ticket I hope.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21045>
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