thr3ads.net - dovecot - [Dovecot] Dovecot on Solaris 10 Segmentation Fault [Jan 2014]

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Thomas

2014-Jan-22 15:21 UTC

[Dovecot] Dovecot on Solaris 10 Segmentation Fault

Hello,

make check on Solaris 10 throws a segmentation fault.

The error is independent of the compiler (SunStudio/GCC) and processor
architecture (SPARC/x86) and 32 or 64 bit binary.


Dovecot Version: 2.2.10
OS: Solaris 10/SPARC & x86

SunStudion Compiler
cc: Sun C 5.10 SunOS_sparc Patch 141861-10 2012/11/07

GCC
gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath)


The error occurs first in: src/lib-http/test-http-url
Line 317/318:
test_out(t_strdup_printf("url->user = %s", urlp->user),
    urlp->user == urlt->user);

(if commenting out these lines, then it segfaults just in the next test)


%make check
<--- cut out lot of good output --->

http date invalid [42]: parse Sun Nov  6 08:49:37 0000 ............... : ok
http date invalid [42] ............................................... : ok
0 / 150 tests failed
http url valid [0]: http_url_parse(http://localhost) ................. : ok
http url valid [0]: url->host_name = localhost ....................... : ok
http url valid [0]: url->port = (unspecified) ........................ : ok
http url valid [0]: url->host_ip = (unspecified) ..................... : ok
/bin/bash: line 1: 28764 Segmentation Fault      (core dumped) ./$bin
gmake[2]: *** [check-test] Error 1
gmake[2]: Leaving directory `/data/obj/dovecot-2.2.10/src/lib-http'
gmake[1]: *** [check-recursive] Error 1
gmake[1]: Leaving directory `/data/obj/dovecot-2.2.10/src'
gmake: *** [check-recursive] Error 1


% pstack /var/core/core.test-http-url.28764
core '/var/core/core.test-http-url.28764' of 28764:     ./test-http-url
 ff122d50 strlen   (3365e, ffbff6fc, ffbfecf9, 0, 0, 0) + 50
 ff191c3c vsnprintf (4a638, 10e, 33650, ffbff6f8, 7ffffc00, 2400) + 6c
 0002be0c t_strdup_printf (4a638, 2340, 48118, 2e, 48110, e) + 6c
 0001635c ???????? (0, 0, 47800, 335c4, 80000000, 40000000)
 0001924c test_run (fffd3268, 2cc00, ffbff94c, 2380, 2000, 47e94) + 6c
 00016008 _start   (0, 0, 0, 0, 0, 0) + 108

% dbx test-http-url /var/core/core.test-http-url.28884

(dbx) examine
0xff122d5c: strlen+0x005c:       0x98132101

(dbx) regs
current frame:  [1]
g0-g1    0x00000000 0x00000000 0x00000000 0x0004a638
g2-g3    0x00000000 0x0004a3bc 0x00000000 0x0004a3b8
g4-g5    0x00000000 0x0004a3c8 0x00000000 0x00000270
g6-g7    0x00000000 0x00000000 0x00000000 0xff272a00
o0-o1    0x00000000 0x00000000 0x00000000 0xfffffaf0
o2-o3    0x00000000 0x00000000 0x00000000 0xffbff798
o4-o5    0x00000000 0x00000000 0x00000000 0x0000002b
o6-o7    0x00000000 0xffbfe920 0x00000000 0xff18f498
l0-l1    0x00000000 0x00000073 0x00000000 0x00000000
l2-l3    0x00000000 0x00000000 0x00000000 0x00001000
l4-l5    0x00000000 0x00000000 0x00000000 0x00000000
l6-l7    0x00000000 0xff236c99 0x00000000 0x00000000
i0-i1    0x00000000 0x0003365e 0x00000000 0xffbff8dc
i2-i3    0x00000000 0xffbfeed9 0x00000000 0x00000000
i4-i5    0x00000000 0x00000000 0x00000000 0x00000000
i6-i7    0x00000000 0xffbff7b0 0x00000000 0xff191c3c
y        0x00000000 0x00000000
ccr      0x00000000 0xfe401005
pc       0x00000000 0xff122d50:strlen+0x50    ld       [%o2], %o1
npc      0x00000000 0xff122d54:strlen+0x54    sethi    %hi(0x1010000), %o4

(dbx) dis 0xff122d3c
0xff122d3c: strlen+0x003c:      be,pn    %icc,strlen+0xcc       ! 0xff122dcc
0xff122d40: strlen+0x0040:      btst     255, %o1
0xff122d44: strlen+0x0044:      be,pn    %icc,strlen+0xcc       ! 0xff122dcc
0xff122d48: strlen+0x0048:      inc      %o2
0xff122d4c: strlen+0x004c:      inc      %o2
0xff122d50: strlen+0x0050:      ld       [%o2], %o1
0xff122d54: strlen+0x0054:      sethi    %hi(0x1010000), %o4
0xff122d58: strlen+0x0058:      sethi    %hi(0x80808000), %o5
0xff122d5c: strlen+0x005c:      bset     257, %o4
0xff122d60: strlen+0x0060:      bset     128, %o5


% truss -f ./test-http-url
<--- cut out the beginning of output --->

28884: 
open("/platform/SUNW,SPARC-Enterprise-T5220/lib/libc_psr.so.1",
O_RDONLY) = 3
28884:  mmap(0x00010000, 9244, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_ALIGN, 3, 0) = 0xFF0E0000
28884:  munmap(0xFF0E2000, 1052)                        = 0
28884:  close(3)                                        = 0
28884:  getpid()                                        = 28884 [28883]
28884:  brk(0x0004A3A8)                                 = 0
28884:  brk(0x000543A8)                                 = 0
28884:  sysinfo(SI_HOSTNAME, "badile", 255)             = 7
28884:  getpid()                                        = 28884 [28883]
28884:  ioctl(1, TCGETA, 0xFFBFF664)                    = 0
28884:  fstat64(1, 0xFFBFF580)                          = 0
http url valid [0]28884:        write(1, " h t t p   u r l   v a l"..,
18)      = 18
: http_url_parse(http://localhost)28884:        write(1, " :   h t t p _
u r l _ p".., 34)      = 34
 ................. : ok
28884:  write(1, "   . . . . . . . . . . .".., 24)      = 24
http url valid [0]28884:        write(1, " h t t p   u r l   v a l"..,
18)      = 18
: url->host_name = localhost28884:      write(1, " :   u r l - > h o
s t
_".., 28)      = 28
 ....................... : ok
28884:  write(1, "   . . . . . . . . . . .".., 30)      = 30
http url valid [0]28884:        write(1, " h t t p   u r l   v a l"..,
18)      = 18
: url->port = (unspecified)28884:       write(1, " :   u r l - > p o
r t
 ".., 27)      = 27
 ........................ : ok
28884:  write(1, "   . . . . . . . . . . .".., 31)      = 31
http url valid [0]28884:        write(1, " h t t p   u r l   v a l"..,
18)      = 18
: url->host_ip = (unspecified)28884:    write(1, " :   u r l - > h o
s t
_".., 30)      = 30
 ..................... : ok
28884:  write(1, "   . . . . . . . . . . .".., 28)      = 28
28884:      Incurred fault #6, FLTBOUNDS  %pc = 0xFF122D50
28884:        siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000
28884:      Received signal #11, SIGSEGV [default]
28884:        siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000


% apptrace -f ./test-http-url
<--- cut out the beginning of output --->

  28897:-> test-http-url -> libc.so.1:int fputs(const char * = 0x33618
"url->host_ip = (unspecified)", FILE * = 0xfef2759c)
: url->host_ip = (unspecified)  28897:<- test-http-url ->
libc.so.1:fputs() = 0x1c
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x20, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x20
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0x2e, FILE *
0xfef2759c)
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0x2e
  28897:-> test-http-url -> libc.so.1:size_t fwrite(const void * 0x33e28,
size_t = 0x1, size_t = 0x3, FILE * = 0xfef2759c)
  28897:<- test-http-url -> libc.so.1:fwrite() = 0x3
  28897:-> test-http-url -> libc.so.1:size_t fwrite(const void * 0x33e2c,
size_t = 0x1, size_t = 0x2, FILE * = 0xfef2759c)
  28897:<- test-http-url -> libc.so.1:fwrite() = 0x2
  28897:-> test-http-url -> libc.so.1:int __flsbuf(int = 0xa, FILE *
0xfef2759c)
 ..................... : ok
  28897:<- test-http-url -> libc.so.1:__flsbuf() = 0xa
  28897:-> test-http-url -> libc.so.1:int vsnprintf(char * = 0x4a638
"",
size_t = 0x10e, const char * = 0x33650 "url->user = %s", va_list
0xffbff998)

apptrace: ./test-http-url: Segmentation Fault(Core dump)


Any help about this?

Cheers
Thomas

Willi Burmeister

2014-Jan-24 20:04 UTC

head link

[Dovecot] Dovecot on Solaris 10 Segmentation Fault

Hi Thomas,
> make check on Solaris 10 throws a segmentation fault. 
in src/lib-http/test-http-url.c you will find several of these:

    if (urlp->host_name == NULL || urlt->host_name == NULL) {
            test_out(t_strdup_printf("url->host_name = %s",
urlp->host_name),

t_strdup_printf is called with urlp->host_name which value is NULL.
So printf is called with a NULL pointer. Linux printf is mapping
the NULL pointer to the string "(null)". Solaris does the right
thing and dumps core.

I will send 3 patch files in privat email. With these it will compile
on Solaris.

I dont understand the logic of the if clauses. Maybe Timo is able
to explain :-)

Greetings

Willi

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