subject:"Bug#848881\: \[gpart\] Floating point exception when scanning"

Bug#848881: [gpart] Floating point exception when scanning

2016-12-20 Thread Ingo Jürgensmann

Am 20.12.2016 um 18:24 schrieb Baruch Even :

> Can you please run it under gdb and capture the output of the command: 
> bt
> bt full

Reading symbols from /usr/sbin/gpart...(no debugging symbols found)...done.
(gdb) r
Starting program: /usr/sbin/gpart -f /dev/lv/Elite3

Program received signal SIGFPE, Arithmetic exception.
0x75f0 in ?? ()
(gdb) bt
#0  0x75f0 in ?? ()
#1  0x677c in ?? ()
#2  0x77a5c2b1 in __libc_start_main () from 
/lib/x86_64-linux-gnu/libc.so.6
#3  0x7409 in ?? ()
(gdb) bt full
#0  0x75f0 in ?? ()
No symbol table info available.
#1  0x677c in ?? ()
No symbol table info available.
#2  0x77a5c2b1 in __libc_start_main () from 
/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x7409 in ?? ()
No symbol table info available.
(gdb)

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Bug#848881: [gpart] Floating point exception when scanning

2016-12-20 Thread Baruch Even

Can you please run it under gdb and capture the output of the command:
bt
bt full

Baruch

On Tue, Dec 20, 2016, 18:32 Eriberto Mota  wrote:

> Control: severity 848881 important
>
> Hi,
>
> Adding Baruch (upstream) in Cc.
>
> I downgraded the severity to important because this bug is not grave
> (maybe it could be normal).
>
> Baruch, any idea?
>
> Regards,
>
> Eriberto
>
>
> 2016-12-20 11:33 GMT-02:00 Ingo Juergensmann :
> > Package: gpart
> > Version: 1:0.3-3
> > Severity: grave
> >
> > --- Please enter the report below this line. ---
> > Hi!
> >
> > When trying to examine a volume on LVM, I get a floating point exception
> > quite instantly:
> >
> >
> > # strace -f gpart -f /dev/lv/Elite3
> > execve("/usr/sbin/gpart", ["gpart", "-f", "/dev/lv/Elite3"], [/* 59 vars
> > */]) = 0
> >
> >
> > brk(NULL)   = 0x5564d0c19000
> >
> >
> >
> > access("/etc/ld.so.nohwcap", F_OK)  = -1 ENOENT (No such file or
> > directory)
> >
> >
> > mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> > 0) = 0x7f959d326000
> >
> >
> > access("/etc/ld.so.preload", R_OK)  = -1 ENOENT (No such file or
> > directory)
> >
> >
> > open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
> >
> >
> >
> > fstat(3, {st_mode=S_IFREG|0644, st_size=238540, ...}) = 0
> >
> >
> >
> > mmap(NULL, 238540, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f959d2eb000
> >
> >
> >
> > close(3)= 0
> >
> >
> >
> > access("/etc/ld.so.nohwcap", F_OK)  = -1 ENOENT (No such file or
> > directory)
> >
> >
> > open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
> >
> >
> >
> > read(3,
> > "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\3\2\0\0\0\0\0"...,
> > 832) = 832
> >
> >
> > fstat(3, {st_mode=S_IFREG|0755, st_size=1685264, ...}) = 0
> >
> >
> >
> > mmap(NULL, 3791264, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
> > 0) = 0x7f959cd69000
> >
> >
> > mprotect(0x7f959cefe000, 2093056, PROT_NONE) = 0
> >
> >
> >
> > mmap(0x7f959d0fd000, 24576, PROT_READ|PROT_WRITE,
> > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x194000) = 0x7f959d0fd000
> >
> >
> > mmap(0x7f959d103000, 14752, PROT_READ|PROT_WRITE,
> > MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f959d103000
> >
> >
> > close(3)= 0
> >
> >
> >
> > mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
> > = 0x7f959d2e9000
> >
> >
> > arch_prctl(ARCH_SET_FS, 0x7f959d2e9700) = 0
> >
> >
> >
> > mprotect(0x7f959d0fd000, 16384, PROT_READ) = 0
> >
> >
> >
> > mprotect(0x5564d0783000, 4096, PROT_READ) = 0
> >
> >
> >
> > mprotect(0x7f959d329000, 4096, PROT_READ) = 0
> >
> >
> >
> > munmap(0x7f959d2eb000, 238540)  = 0
> >
> >
> >
> > brk(NULL)   = 0x5564d0c19000
> >
> >
> >
> > brk(0x5564d0c3a000) = 0x5564d0c3a000
> >
> >
> >
> > sync()  = 0
> >
> >
> >
> > open("/dev/lv/Elite3", O_RDONLY)= 3
> >
> >
> >
> > lseek(3, 0, SEEK_SET)   = 0
> >
> >
> >
> > read(3,
> >
> "\16\32R\275\217x\235v\376\377#\0\6/\0\177\377\377DDDE\35\360IHII\33\364GH"...,
> > 512) = 512
> >
> >
> > lseek(3, 0, SEEK_SET)   = 0
> >
> >
> >
> > read(3,
> >
> "\16\32R\275\217x\235v\376\377#\0\6/\0\177\377\377DDDE\35\360IHII\33\364GH"...,
> > 512) = 512
> >
> >
> > stat("/dev/lv/Elite3", {st_mode=S_IFBLK|0660, st_rdev=makedev(253, 16),
> > ...}) = 0
> >
> >
> > ioctl(3, HDIO_GETGEO, {heads=0, sectors=0, cylinders=0, start=0}) = 0
> >
> >
> >
> > ioctl(3, BLKGETSIZE, [8388608]) = 0
> >
> >
> >
> > --- SIGFPE {si_signo=SIGFPE, si_code=FPE_INTDIV, si_addr=0x5564d057d5f0}
> > ---
> >
> >
> > +++ killed by SIGFPE +++
> >
> >
> >
> > Gleitkomma-Ausnahme
> >
> >
> >
> > --- System information. ---
> > Architecture: Kernel:   Linux 4.8.0-2-amd64
> >
> > Debian Release: stretch/sid
> >   500 unstablewww.deb-multimedia.org   500 unstable
> > ftp.de.debian.org   500 unstabledownload.jitsi.org
> > --- Package information. ---
> > Depends  (Version) | Installed
> > ==-+-===
> > libc6 (>= 2.4) |
> >
> > Package's Recommends field is empty.
> >
> > Package's Suggests field is empty.
> >
> >
> >
> >
> > --
> > Ciao...//  Fon: 0381-2744150
> >   Ingo   \X/   http://blog.windfluechter.net
> > Please don't share this address with Facebook or Google!
> > gpg pubkey: http://www.juergensmann.de/ij_public_key.asc
> >
> > ___
> > forensics-devel mailing list
> > forensics-devel@lists.alioth.debian.org
> > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/forensics-devel
>
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Bug#848881: [gpart] Floating point exception when scanning

2016-12-20 Thread Eriberto Mota

Control: severity 848881 important

Hi,

Adding Baruch (upstream) in Cc.

I downgraded the severity to important because this bug is not grave
(maybe it could be normal).

Baruch, any idea?

Regards,

Eriberto


2016-12-20 11:33 GMT-02:00 Ingo Juergensmann :
> Package: gpart
> Version: 1:0.3-3
> Severity: grave
>
> --- Please enter the report below this line. ---
> Hi!
>
> When trying to examine a volume on LVM, I get a floating point exception
> quite instantly:
>
>
> # strace -f gpart -f /dev/lv/Elite3
> execve("/usr/sbin/gpart", ["gpart", "-f", "/dev/lv/Elite3"], [/* 59 vars
> */]) = 0
>
>
> brk(NULL)   = 0x5564d0c19000
>
>
>
> access("/etc/ld.so.nohwcap", F_OK)  = -1 ENOENT (No such file or
> directory)
>
>
> mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> 0) = 0x7f959d326000
>
>
> access("/etc/ld.so.preload", R_OK)  = -1 ENOENT (No such file or
> directory)
>
>
> open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
>
>
>
> fstat(3, {st_mode=S_IFREG|0644, st_size=238540, ...}) = 0
>
>
>
> mmap(NULL, 238540, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f959d2eb000
>
>
>
> close(3)= 0
>
>
>
> access("/etc/ld.so.nohwcap", F_OK)  = -1 ENOENT (No such file or
> directory)
>
>
> open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
>
>
>
> read(3,
> "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\3\2\0\0\0\0\0"...,
> 832) = 832
>
>
> fstat(3, {st_mode=S_IFREG|0755, st_size=1685264, ...}) = 0
>
>
>
> mmap(NULL, 3791264, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
> 0) = 0x7f959cd69000
>
>
> mprotect(0x7f959cefe000, 2093056, PROT_NONE) = 0
>
>
>
> mmap(0x7f959d0fd000, 24576, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x194000) = 0x7f959d0fd000
>
>
> mmap(0x7f959d103000, 14752, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f959d103000
>
>
> close(3)= 0
>
>
>
> mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
> = 0x7f959d2e9000
>
>
> arch_prctl(ARCH_SET_FS, 0x7f959d2e9700) = 0
>
>
>
> mprotect(0x7f959d0fd000, 16384, PROT_READ) = 0
>
>
>
> mprotect(0x5564d0783000, 4096, PROT_READ) = 0
>
>
>
> mprotect(0x7f959d329000, 4096, PROT_READ) = 0
>
>
>
> munmap(0x7f959d2eb000, 238540)  = 0
>
>
>
> brk(NULL)   = 0x5564d0c19000
>
>
>
> brk(0x5564d0c3a000) = 0x5564d0c3a000
>
>
>
> sync()  = 0
>
>
>
> open("/dev/lv/Elite3", O_RDONLY)= 3
>
>
>
> lseek(3, 0, SEEK_SET)   = 0
>
>
>
> read(3,
> "\16\32R\275\217x\235v\376\377#\0\6/\0\177\377\377DDDE\35\360IHII\33\364GH"...,
> 512) = 512
>
>
> lseek(3, 0, SEEK_SET)   = 0
>
>
>
> read(3,
> "\16\32R\275\217x\235v\376\377#\0\6/\0\177\377\377DDDE\35\360IHII\33\364GH"...,
> 512) = 512
>
>
> stat("/dev/lv/Elite3", {st_mode=S_IFBLK|0660, st_rdev=makedev(253, 16),
> ...}) = 0
>
>
> ioctl(3, HDIO_GETGEO, {heads=0, sectors=0, cylinders=0, start=0}) = 0
>
>
>
> ioctl(3, BLKGETSIZE, [8388608]) = 0
>
>
>
> --- SIGFPE {si_signo=SIGFPE, si_code=FPE_INTDIV, si_addr=0x5564d057d5f0}
> ---
>
>
> +++ killed by SIGFPE +++
>
>
>
> Gleitkomma-Ausnahme
>
>
>
> --- System information. ---
> Architecture: Kernel:   Linux 4.8.0-2-amd64
>
> Debian Release: stretch/sid
>   500 unstablewww.deb-multimedia.org   500 unstable
> ftp.de.debian.org   500 unstabledownload.jitsi.org
> --- Package information. ---
> Depends  (Version) | Installed
> ==-+-===
> libc6 (>= 2.4) |
>
> Package's Recommends field is empty.
>
> Package's Suggests field is empty.
>
>
>
>
> --
> Ciao...//  Fon: 0381-2744150
>   Ingo   \X/   http://blog.windfluechter.net
> Please don't share this address with Facebook or Google!
> gpg pubkey: http://www.juergensmann.de/ij_public_key.asc
>
> ___
> forensics-devel mailing list
> forensics-devel@lists.alioth.debian.org
> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/forensics-devel

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Bug#848881: [gpart] Floating point exception when scanning

2016-12-20 Thread Ingo Juergensmann

Package: gpart
Version: 1:0.3-3
Severity: grave

--- Please enter the report below this line. ---
Hi!

When trying to examine a volume on LVM, I get a floating point exception
quite instantly:


# strace -f gpart -f /dev/lv/Elite3
execve("/usr/sbin/gpart", ["gpart", "-f", "/dev/lv/Elite3"], [/* 59 vars
*/]) = 0


brk(NULL)   = 0x5564d0c19000



access("/etc/ld.so.nohwcap", F_OK)  = -1 ENOENT (No such file or
directory)


mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x7f959d326000


access("/etc/ld.so.preload", R_OK)  = -1 ENOENT (No such file or
directory)


open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3



fstat(3, {st_mode=S_IFREG|0644, st_size=238540, ...}) = 0



mmap(NULL, 238540, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f959d2eb000



close(3)= 0



access("/etc/ld.so.nohwcap", F_OK)  = -1 ENOENT (No such file or
directory)


open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3



read(3,
"\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\3\2\0\0\0\0\0"...,
832) = 832


fstat(3, {st_mode=S_IFREG|0755, st_size=1685264, ...}) = 0



mmap(NULL, 3791264, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0x7f959cd69000


mprotect(0x7f959cefe000, 2093056, PROT_NONE) = 0



mmap(0x7f959d0fd000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x194000) = 0x7f959d0fd000


mmap(0x7f959d103000, 14752, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f959d103000


close(3)= 0



mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f959d2e9000


arch_prctl(ARCH_SET_FS, 0x7f959d2e9700) = 0



mprotect(0x7f959d0fd000, 16384, PROT_READ) = 0



mprotect(0x5564d0783000, 4096, PROT_READ) = 0



mprotect(0x7f959d329000, 4096, PROT_READ) = 0



munmap(0x7f959d2eb000, 238540)  = 0



brk(NULL)   = 0x5564d0c19000



brk(0x5564d0c3a000) = 0x5564d0c3a000



sync()  = 0



open("/dev/lv/Elite3", O_RDONLY)= 3



lseek(3, 0, SEEK_SET)   = 0



read(3,
"\16\32R\275\217x\235v\376\377#\0\6/\0\177\377\377DDDE\35\360IHII\33\364GH"...,
512) = 512


lseek(3, 0, SEEK_SET)   = 0



read(3,
"\16\32R\275\217x\235v\376\377#\0\6/\0\177\377\377DDDE\35\360IHII\33\364GH"...,
512) = 512


stat("/dev/lv/Elite3", {st_mode=S_IFBLK|0660, st_rdev=makedev(253, 16),
...}) = 0


ioctl(3, HDIO_GETGEO, {heads=0, sectors=0, cylinders=0, start=0}) = 0



ioctl(3, BLKGETSIZE, [8388608]) = 0



--- SIGFPE {si_signo=SIGFPE, si_code=FPE_INTDIV, si_addr=0x5564d057d5f0}
---


+++ killed by SIGFPE +++



Gleitkomma-Ausnahme



--- System information. ---
Architecture: Kernel:   Linux 4.8.0-2-amd64

Debian Release: stretch/sid
  500 unstablewww.deb-multimedia.org   500 unstable
ftp.de.debian.org   500 unstabledownload.jitsi.org
--- Package information. ---
Depends  (Version) | Installed
==-+-===
libc6 (>= 2.4) |

Package's Recommends field is empty.

Package's Suggests field is empty.




-- 
Ciao...//  Fon: 0381-2744150
  Ingo   \X/   http://blog.windfluechter.net
Please don't share this address with Facebook or Google!
gpg pubkey: http://www.juergensmann.de/ij_public_key.asc

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Bug#848881: [gpart] Floating point exception when scanning

Bug#848881: [gpart] Floating point exception when scanning

Bug#848881: [gpart] Floating point exception when scanning

Bug#848881: [gpart] Floating point exception when scanning

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