gdb --args strace linux32 chroot /mnt/gentoo32 /bin/bash

gdb3.txt (text/plain), 11.10 KB, created by taaroa on 2011-05-09 13:20:21 UTC

gdb --args strace linux32 chroot /mnt/gentoo32 /bin/bash 
GNU gdb (Gentoo 7.2 p1) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.gentoo.org/>...
Reading symbols from /usr/bin/strace...(no debugging symbols found)...done.
(gdb) handle SIGSEGV SIGBUS stop print
Signal        Stop      Print   Pass to program Description
SIGBUS        Yes       Yes     Yes             Bus error
SIGSEGV       Yes       Yes     Yes             Segmentation fault
(gdb) run
Starting program: /usr/bin/strace linux32 chroot /mnt/gentoo32 /bin/bash
execve("/usr/bin/linux32", ["linux32", "chroot", "/mnt/gentoo32", "/bin/bash"], [/* 48 vars */]) = 0
brk(0)                                  = 0x233ad181c0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x3df506b9000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=98467, ...}) = 0
mmap(NULL, 98467, PROT_READ, MAP_PRIVATE, 5, 0) = 0x3df506a0000
close(5)                                = 0
open("/lib64/libc.so.6", O_RDONLY)      = 5
read(5, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\24\2\0\0\0\0\0"..., 832) = 832
fstat(5, {st_mode=S_IFREG|0755, st_size=1690984, ...}) = 0
mmap(NULL, 3803112, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 5, 0) = 0x3df500fa000
mprotect(0x3df50290000, 2097152, PROT_NONE) = 0
mmap(0x3df50490000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 5, 0x196000) = 0x3df50490000
mmap(0x3df50495000, 22504, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3df50495000
close(5)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x3df5069f000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x3df5069d000
arch_prctl(ARCH_SET_FS, 0x3df5069d720)  = 0
mprotect(0x3df50490000, 16384, PROT_READ) = 0
mprotect(0x233ad06000, 4096, PROT_READ) = 0
mprotect(0x3df506bb000, 4096, PROT_READ) = 0
munmap(0x3df506a0000, 98467)            = 0
brk(0)                                  = 0x233ad181c0
brk(0x233ad391c0)                       = 0x233ad391c0
brk(0x233ad3a000)                       = 0x233ad3a000
open("/usr/lib64/locale/locale-archive", O_RDONLY) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=3447184, ...}) = 0
mmap(NULL, 3447184, PROT_READ, MAP_PRIVATE, 5, 0) = 0x3df4fdb0000
close(5)                                = 0
personality(PER_LINUX32)                = 262144
uname({sys="Linux", node="taaroa", ...}) = 0
execve("/usr/local/sbin/chroot", ["chroot", "/mnt/gentoo32", "/bin/bash"], [/* 48 vars */]) = -1 ENOENT (No such file or directory)
execve("/usr/local/bin/chroot", ["chroot", "/mnt/gentoo32", "/bin/bash"], [/* 48 vars */]) = -1 ENOENT (No such file or directory)
execve("/usr/sbin/chroot", ["chroot", "/mnt/gentoo32", "/bin/bash"], [/* 48 vars */]) = -1 ENOENT (No such file or directory)
execve("/usr/bin/chroot", ["chroot", "/mnt/gentoo32", "/bin/bash"], [/* 48 vars */]) = 0
brk(0)                                  = 0x6516c6f810
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2d02e6bc000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=98467, ...}) = 0
mmap(NULL, 98467, PROT_READ, MAP_PRIVATE, 5, 0) = 0x2d02e6a3000
close(5)                                = 0
open("/lib64/libc.so.6", O_RDONLY)      = 5
read(5, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\24\2\0\0\0\0\0"..., 832) = 832
fstat(5, {st_mode=S_IFREG|0755, st_size=1690984, ...}) = 0
mmap(NULL, 3803112, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 5, 0) = 0x2d02e0fd000
mprotect(0x2d02e293000, 2097152, PROT_NONE) = 0
mmap(0x2d02e493000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 5, 0x196000) = 0x2d02e493000
mmap(0x2d02e498000, 22504, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2d02e498000
close(5)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2d02e6a2000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2d02e6a0000
arch_prctl(ARCH_SET_FS, 0x2d02e6a0720)  = 0
mprotect(0x2d02e493000, 16384, PROT_READ) = 0
mprotect(0x6516c6c000, 4096, PROT_READ) = 0
mprotect(0x2d02e6be000, 4096, PROT_READ) = 0
munmap(0x2d02e6a3000, 98467)            = 0
brk(0)                                  = 0x6516c6f810
brk(0x6516c90810)                       = 0x6516c90810
brk(0x6516c91000)                       = 0x6516c91000
open("/usr/lib64/locale/locale-archive", O_RDONLY) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=3447184, ...}) = 0
mmap(NULL, 3447184, PROT_READ, MAP_PRIVATE, 5, 0) = 0x2d02ddb3000
close(5)                                = 0
chroot("/mnt/gentoo32")                 = 0
chdir("/")                              = 0
execve("/bin/bash", ["/bin/bash"], [/* 48 vars */]) = 0
[ Process PID=5767 runs in 32 bit mode. ]
Unknown value CS=0x286 while detecting personality of process PID=5767
Unknown value CS=0x286 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 5
Unknown value CS=0x286 while detecting personality of process PID=5767
Unknown value CS=0x286 while detecting personality of process PID=5767
mmap2(NULL, 38843, PROT_READ, MAP_PRIVATE, 5, 0) = 0xffffffffec112000
Unknown value CS=0x287 while detecting personality of process PID=5767
Unknown value CS=0x287 while detecting personality of process PID=5767
Unknown value CS=0x246 while detecting personality of process PID=5767
Unknown value CS=0x246 while detecting personality of process PID=5767
read(5, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\257\0\0004\0\0\0"..., 512) = 512
Unknown value CS=0x286 while detecting personality of process PID=5767
Unknown value CS=0x286 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
mmap2(0xec10f000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 5, 0x46) = 0xffffffffec10f000
Unknown value CS=0x246 while detecting personality of process PID=5767
Unknown value CS=0x246 while detecting personality of process PID=5767
Unknown value CS=0x246 while detecting personality of process PID=5767
Unknown value CS=0x246 while detecting personality of process PID=5767
read(5, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\0\n\0\0004\0\0\0"..., 512) = 512
fstat64(5, {st_mode=S_IFREG|0755, st_size=9488, ...}) = 0
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x212 while detecting personality of process PID=5767
Unknown value CS=0x212 while detecting personality of process PID=5767
Unknown value CS=0x246 while detecting personality of process PID=5767
Unknown value CS=0x246 while detecting personality of process PID=5767
open("/lib/libc.so.6", O_RDONLY)        = 5
read(5, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240o\1\0004\0\0\0"..., 512) = 512
fstat64(5, {st_mode=S_IFREG|0755, st_size=1626828, ...}) = 0
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x212 while detecting personality of process PID=5767
Unknown value CS=0x212 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
close(5)                                = 0
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x256 while detecting personality of process PID=5767
Unknown value CS=0x282 while detecting personality of process PID=5767
Unknown value CS=0x282 while detecting personality of process PID=5767
Unknown value CS=0x206 while detecting personality of process PID=5767
Unknown value CS=0x206 while detecting personality of process PID=5767
Unknown value CS=0x206 while detecting personality of process PID=5767
Unknown value CS=0x206 while detecting personality of process PID=5767
mprotect(0xec10f000, 8192, PROT_READ)   = 0
mprotect(0x2916000, 8192, PROT_READ)    = 0
Unknown value CS=0x206 while detecting personality of process PID=5767
Unknown value CS=0x206 while detecting personality of process PID=5767
munmap(0xec112000, 38843)               = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
open("/dev/tty", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 5
close(5)                                = 0
brk(0)                                  = 0x2923494
brk(0x2944494)                          = 0x2944494
brk(0x2945000)                          = 0x2945000
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 5
fstat64(5, {st_mode=S_IFREG|0644, st_size=3447184, ...}) = 0
mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 5, 0) = 0xffffffffebd33000
--- {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0xebd33010} (Bus error) ---
+++ killed by SIGBUS +++

Program received signal SIGBUS, Bus error.
0x0000034d9a5962c5 in ?? ()
(gdb) bt
#0  0x0000034d9a5962c5 in ?? ()
#1  0x00000001620f9999 in main ()
(gdb) x/8i $pc
=> 0x34d9a5962c5:       cmp    $0xfffffffffffff000,%rax
   0x34d9a5962cb:       ja     0x34d9a5962df
   0x34d9a5962cd:       repz retq 
   0x34d9a5962cf:       nop
   0x34d9a5962d0:       test   %eax,%eax
   0x34d9a5962d2:       jg     0x34d9a5962b5
   0x34d9a5962d4:       test   $0x7fffffff,%eax
   0x34d9a5962d9:       je     0x34d9a5962f0
(gdb) info reg
rax            0x0      0
rbx            0x162365030      5942693936
rcx            0xffffffffffffffff       -1
rdx            0x7      7
rsi            0x1684   5764
rdi            0x1684   5764
rbp            0x162124c59      0x162124c59
rsp            0x3954b18ae68    0x3954b18ae68
r8             0x3954b18adc0    3939744918976
r9             0x0      0
r10            0x8      8
r11            0x246    582
r12            0x34d9ab036a0    3631842604704
r13            0x34d9a8fae68    3631840472680
r14            0x16235d504      5942662404
r15            0x3954b18aeb0    3939744919216
rip            0x34d9a5962c5    0x34d9a5962c5
eflags         0x246    [ PF ZF IF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0
(gdb) q
A debugging session is active.

        Inferior 1 [process 5764] will be killed.

Quit anyway? (y or n) y