Re: armhf: illegal hardware instruction

On Tue, Jun 28, 2022 at 4:54 PM John Reiser <[email protected]> wrote:
>
> track down Debian issue https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=928224
> which is 3 years old:
> -----
> Installed libc6 version: libc6-dgb:armhf 2.28-8
>
> valgrind /bin/true
>
> ==12463== Memcheck, a memory error detector
> ==12463== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
> ==12463== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
> valgrind:  Fatal error at startup: a function redirection
> valgrind:  which is mandatory for this platform-tool combination
> valgrind:  cannot be set up.  Details of the redirection are:
> valgrind:
> valgrind:  A must-be-redirected function
> valgrind:  whose name matches the pattern:      index
> valgrind:  in an object with soname matching:   ld-linux-armhf.so.3
> valgrind:  was not found whilst processing
> valgrind:  symbols from the object with soname: ld-linux-armhf.so.3
> -----
>
> Using valgrind 3.19.0 on Debian/sid :
> % dpkg --print-architecture
> armhf
> % cat /proc/cpuinfo | grep vfpv3 | head -1
> Features        : half thumb fastmult vfp edsp thumbee vfpv3 tls idiva
> idivt vfpd32 lpae
> > % ./memcheck/memcheck-arm-linux
> > zsh: illegal hardware instruction  ./memcheck/memcheck-arm-linux
> >
> > Just in case that help, here is the gdb output (*)
> >
> > Let me know if you need more output.
> >
> > (*)
> > % gdb ./memcheck/memcheck-arm-linux
> > GNU gdb (Debian 12.1-2) 12.1
>
> > (gdb) r
> > Starting program: /home/malat/valgrind-3.19.0/memcheck/memcheck-arm-linux
> >
> > Program received signal SIGILL, Illegal instruction.
> > vgPlain_am_startup (sp_at_startup=3204445840) at
> > m_aspacemgr/aspacemgr-linux.c:1626
> > 1626       init_nsegment(&seg);
> > (gdb) bt full
> > #0  vgPlain_am_startup (sp_at_startup=3204445840) at
> > m_aspacemgr/aspacemgr-linux.c:1626
> >          seg = {kind = 0, start = 0, end = 0, smode = SmLower, dev = 0,
> > ino = 0, offset = 5378467285696512, mode = 3204445844, fnIdx =
> > -1090521456, hasR = 0 '\000', hasW = 0 '\000', hasX = 38 '&',
> >            hasT = 88 'X', isCH = 164 '\244'}
> >          suggested_clstack_end = <optimized out>
> >          __PRETTY_FUNCTION__ = "vgPlain_am_startup"
>
>
> I tried to reproduce the reported behavior of valgrind-3.19.0 on my system :
> ----- /proc/cpuinfo
> model name      : ARMv7 Processor rev 4 (v7l)
> BogoMIPS        : 51.20
> Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
> CPU implementer : 0x41
> CPU architecture: 7
> CPU variant     : 0x0
> CPU part        : 0xd03
> CPU revision    : 4
> -----
> $ uname -a
> Linux f33arm32 5.9.14-200.fc33.armv7hl #1 SMP Fri Dec 11 15:02:36 UTC 2020 armv7l armv7l armv7l GNU/Linux
> $ ldd /bin/date
>         libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb6f6a000)
>         libc.so.6 => /lib/libc.so.6 (0xb6e14000)
>         /lib/ld-linux-armhf.so.3 (0xb6fbe000)
>
> So the name of ld-linux contains 'armhf', although the Linux kernel is 'armv7l'.
> The Features line of /proc/cpuinfo is not quite equivalent:
> Mathieu's: half thumb fastmult vfp edsp thumbee vfpv3 tls       idiva idivt vfpd32 lpae
> mine:      half thumb fastmult vfp edsp neon    vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
>
> Re-building the software:
> -----
> $ wget https://sourceware.org/pub/valgrind/valgrind-3.19.0.tar.bz2
> $ tar xf valgrind-3.19.0.tar.bz2
> $ cd valgrind-3.19.0
> $ ./configure
> $ make -j4
> $ file ./memcheck/memcheck-arm-linux
> ./memcheck/memcheck-arm-linux: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), statically linked, BuildID[sha1]=2880b8ee178c482a9de58e83b161a0b38ca008ff, with debug_info, not stripped
> $ ./memcheck/memcheck-arm-linux
> valgrind: You cannot run './memcheck/memcheck-arm-linux' directly.
> valgrind: You should use $prefix/bin/valgrind.
> $ sudo make install
> $ /usr/local/bin/valgrind --version
> valgrind-3.19.0
> $ /usr/local/bin/valgrind /bin/date
> ==14541== Memcheck, a memory error detector
> ==14541== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
> ==14541== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
> ==14541== Command: /bin/date
> ==14541==
> Tue Jun 28 07:40:14 AM PDT 2022
> ==14541==
> ==14541== HEAP SUMMARY:
> ==14541==     in use at exit: 0 bytes in 0 blocks
> ==14541==   total heap usage: 427 allocs, 427 frees, 30,017 bytes allocated
> ==14541==
> ==14541== All heap blocks were freed -- no leaks are possible
> ==14541==
> ==14541== For lists of detected and suppressed errors, rerun with: -s
> ==14541== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
> $
> -----
>
> So, valgrind-3.19.0 works for me.  I cannot reproduce the original bad behavior, nor the SIGILL,
> on my hardware running 5.9.14-200.fc33.armv7hl.

Ok, thanks for the quick answer. I discovered that I was supposed to
run 'vg-in-place' when not using make install.

Here is my strace output (*)

> If you believe that my Fedora33 environment is not close enough to your Debian/sid,
> then please give the URL of a raw image for RaspberryPi Model 3 V1.2 that I can install
> on a 32GB SDHC card.

Can you try:

$ export RPI_MODEL=3
$ export DEBIAN_RELEASE=bullseye
$ wget https://raspi.debian.net/daily/raspi_${RPI_MODEL}_${DEBIAN_RELEASE}.img.xz

See complete instructions at:

https://wiki.debian.org/RaspberryPiImages

Thanks -again-

(*) this is from a git/master as of today:

% strace ./vg-in-place
execve("./vg-in-place", ["./vg-in-place"], 0xbe95c740 /* 19 vars */) = 0
brk(NULL)                               = 0x1bbd000
uname({sysname="Linux", nodename="abel", ...}) = 0
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb6fbb000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
statx(3, "", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT|AT_EMPTY_PATH,
STATX_BASIC_STATS, {stx_mask=STATX_ALL, stx_attributes=0,
stx_mode=S_IFREG|0644, stx_size=17519, ...}) = 0
mmap2(NULL, 17519, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6fb6000
close(3)                                = 0
openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/libc.so.6",
O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0y}\1\0004\0\0\0"...,
512) = 512
statx(3, "", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT|AT_EMPTY_PATH,
STATX_BASIC_STATS, {stx_mask=STATX_ALL, stx_attributes=0,
stx_mode=S_IFREG|0755, stx_size=983540, ...}) = 0
mmap2(NULL, 1073552, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0) = 0xb6e8a000
mprotect(0xb6f77000, 61440, PROT_NONE)  = 0
mmap2(0xb6f86000, 12288, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xec000) = 0xb6f86000
mmap2(0xb6f89000, 29072, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6f89000
close(3)                                = 0
set_tls(0xb6fbbe20)                     = 0
mprotect(0xb6f86000, 8192, PROT_READ)   = 0
mprotect(0x4ee000, 4096, PROT_READ)     = 0
mprotect(0xb6fbd000, 4096, PROT_READ)   = 0
munmap(0xb6fb6000, 17519)               = 0
getuid32()                              = 3180
getgid32()                              = 3180
getpid()                                = 7762
rt_sigaction(SIGCHLD, {sa_handler=0x4d9db9, sa_mask=~[RTMIN RT_1],
sa_flags=SA_RESTORER, sa_restorer=0xb6eb1fd1}, NULL, 8) = 0
geteuid32()                             = 3180
brk(NULL)                               = 0x1bbd000
brk(0x1bde000)                          = 0x1bde000
getppid()                               = 7759
statx(AT_FDCWD, "/home/malat/valgrind",
AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT, STATX_BASIC_STATS,
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFDIR|0755,
stx_size=4096, ...}) = 0
statx(AT_FDCWD, ".", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT,
STATX_BASIC_STATS, {stx_mask=STATX_ALL, stx_attributes=0,
stx_mode=S_IFDIR|0755, stx_size=4096, ...}) = 0
openat(AT_FDCWD, "./vg-in-place", O_RDONLY|O_LARGEFILE) = 3
fcntl64(3, F_DUPFD, 10)                 = 10
close(3)                                = 0
fcntl64(10, F_SETFD, FD_CLOEXEC)        = 0
geteuid32()                             = 3180
getegid32()                             = 3180
rt_sigaction(SIGINT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x4d9db9, sa_mask=~[RTMIN RT_1],
sa_flags=SA_RESTORER, sa_restorer=0xb6eb1fd1}, NULL, 8) = 0
rt_sigaction(SIGQUIT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=SIG_DFL, sa_mask=~[RTMIN RT_1],
sa_flags=SA_RESTORER, sa_restorer=0xb6eb1fd1}, NULL, 8) = 0
rt_sigaction(SIGTERM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=SIG_DFL, sa_mask=~[RTMIN RT_1],
sa_flags=SA_RESTORER, sa_restorer=0xb6eb1fd1}, NULL, 8) = 0
read(10, "#!/bin/sh\n\n# Figure out an absol"..., 8192) = 691
statx(AT_FDCWD, "./vg-in-place",
AT_STATX_SYNC_AS_STAT|AT_SYMLINK_NOFOLLOW|AT_NO_AUTOMOUNT,
STATX_BASIC_STATS, {stx_mask=STATX_ALL, stx_attributes=0,
stx_mode=S_IFREG|0755, stx_size=691, ...}) = 0
pipe([3, 4])                            = 0
clone(child_stack=NULL,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0xb6fbb948) = 7763
close(4)                                = 0
read(3, "/home/malat/valgrind/.\n", 128) = 23
read(3, "", 128)                        = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7763,
si_uid=3180, si_status=0, si_utime=0, si_stime=0} ---
sigreturn({mask=[]})                    = 0
close(3)                                = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 7763
wait4(-1, 0xbeeca264, WNOHANG, NULL)    = -1 ECHILD (No child processes)
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], NULL, 8) = 0
vfork()                                 = 7764
rt_sigprocmask(SIG_SETMASK, [], ~[KILL STOP RTMIN RT_1], 8) = 0
wait4(-1, [{WIFSIGNALED(s) && WTERMSIG(s) == SIGILL}], 0, NULL) = 7764
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=7764,
si_uid=3180, si_status=SIGILL, si_utime=0, si_stime=0} ---
sigreturn({mask=[]})                    = 7764
write(2, "Illegal instruction\n", 20Illegal instruction
)   = 20
wait4(-1, 0xbeeca394, WNOHANG, NULL)    = -1 ECHILD (No child processes)
read(10, "", 8192)                      = 0
exit_group(132)                         = ?
+++ exited with 132 +++