[Bug corefiles/17808] New: 7.9 regression: internal-error: i386_supply_gregset: Assertion `len == tdep->sizeof_gregset' failed.

["jan.kratochvil at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=17808

            Bug ID: 17808
           Summary: 7.9 regression: internal-error: i386_supply_gregset:
                    Assertion `len == tdep->sizeof_gregset' failed.
           Product: gdb
           Version: 7.9
            Status: NEW
          Severity: normal
          Priority: P2
         Component: corefiles
          Assignee: unassigned at sourceware dot org
          Reporter: jan.kratochvil at redhat dot com
                CC: arnez at linux dot vnet.ibm.com
            Target: x86_64-linux-gnu

./gdb -q -c ./i386-biarch-core.core 
i386-tdep.c:3730: internal-error: i386_supply_gregset: Assertion `len ==
tdep->sizeof_gregset' failed.

8f0435f75e3c9676d2e177ce055fed3155fd9476 is the first bad commit
commit 8f0435f75e3c9676d2e177ce055fed3155fd9476
Author: Andreas Arnez <arnez@linux.vnet.ibm.com>
Date:   Fri Sep 12 08:42:48 2014 +0000
    Add 'regset' parameter to 'iterate_over_regset_sections_cb'
Message-Id: <1410538439-29791-1-git-send-email-arnez@linux.vnet.ibm.com>

#0  internal_error (file=0x20931c0 "i386-tdep.c", line=3730, fmt=0x20936a0 "%s:
Assertion `%s' failed.") at ./common/errors.c:51
#1  in i386_supply_gregset (regset=0x2094800 <i386_gregset>,
regcache=0x6060000bdfe0, regnum=-1, gregs=0x7fffffffcce0, len=216) at
i386-tdep.c:3730
#2  in get_core_register_section (regcache=0x6060000bdfe0, regset=0x2094800
<i386_gregset>, name=0x208dd40 ".reg", min_size=68, which=-1,
human_name=0x2223fa0 "general-purpose", required=1) at corelow.c:538
#3  in get_core_registers_cb (sect_name=0x208dd40 ".reg", size=68,
regset=0x2094800 <i386_gregset>, human_name=0x2223fa0 "general-purpose",
cb_data=0x6060000bdfe0) at corelow.c:573
#4  in i386_linux_iterate_over_regset_sections (gdbarch=0x62100011e510,
cb=0x9921db <get_core_registers_cb>, cb_data=0x6060000bdfe0, regcache=0x0) at
i386-linux-tdep.c:690
#5  in gdbarch_iterate_over_regset_sections (gdbarch=0x62100011e510,
cb=0x9921db <get_core_registers_cb>, cb_data=0x6060000bdfe0, regcache=0x0) at
gdbarch.c:3350
#6  in get_core_registers (ops=0x3e5b700 <core_ops>, regcache=0x6060000bdfe0,
regno=8) at corelow.c:601
#7  in delegate_fetch_registers (self=0x3e5b700 <core_ops>,
arg1=0x6060000bdfe0, arg2=8) at target-delegates.c:149
#8  in target_fetch_registers (regcache=0x6060000bdfe0, regno=8) at
target.c:3279
#9  in regcache_raw_read (regcache=0x6060000bdfe0, regnum=8, buf=0x7fffffffd060
"\240\320\377\377\377\177") at regcache.c:643
#10 in regcache_cooked_read (regcache=0x6060000bdfe0, regnum=8,
buf=0x7fffffffd060 "\240\320\377\377\377\177") at regcache.c:734
#11 in regcache_cooked_read_unsigned (regcache=0x6060000bdfe0, regnum=8,
val=0x7fffffffd120) at regcache.c:838
#12 in regcache_read_pc (regcache=0x6060000bdfe0) at regcache.c:1179 
#13 in post_create_inferior (target=0x3e5b700 <core_ops>, from_tty=1) at
infcmd.c:431
#14 in core_open (arg=0x7fffffffdd24 "./i386-biarch-core.core", from_tty=1) at
corelow.c:408
#15 in core_file_command (filename=0x7fffffffdd24 "./i386-biarch-core.core",
from_tty=1) at corefile.c:77

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