[Bug 204426] Processes terminating cannot access memory
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Tue Feb 23 22:46:28 UTC 2016
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204426
--- Comment #50 from Robert Blayzor <rblayzor at inoc.net> ---
DIfferent process, similar crash... core file did dump. Note, the "amd" mount
you see is just the machine I complied the binaries (buildworld) on. No auto
mounter is used on the diskless boot VM's.
pid 63755 (managesieve-login), uid 0: exited on signal 11 (core dumped)
#0 memset () at
/.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libc/amd64/string/memset.S:51
51 /.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libc/amd64/string/memset.S: No
such file or directory.
in /.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libc/amd64/string/memset.S
(gdb) bt full
#0 memset () at
/.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libc/amd64/string/memset.S:51
No locals.
#1 0x00000000106189e0 in map_object (fd=9, path=0x1062a260 "/lib/libc.so.7",
sb=0x7fffffffd920)
at /.amd_mnt/juno/pub/FreeBSD/10-STABLE/libexec/rtld-elf/map_object.c:242
phsize = <value optimized out>
stack_flags = Cannot access memory at address 0x7
Current language: auto; currently asm
(gdb) x/i $rip
0x1061c524 <memset+68>: rep stos %rax,%es:(%rdi)
(gdb) info registers
rax 0x0 0
rbx 0x1 1
rcx 0x4a 74
rdx 0x0 0
rsi 0x0 0
rdi 0x11787db0 293109168
rbp 0x7fffffffd8f0 0x7fffffffd8f0
rsp 0x7fffffffd7a8 0x7fffffffd7a8
r8 0x250 592
r9 0xfffffe00945fd6b8 -2196533946696
r10 0x0 0
r11 0x11787db0 293109168
r12 0x9 9
r13 0x1063a000 274964480
r14 0x1062a260 274899552
r15 0x7fffffffd920 140737488345376
rip 0x1061c524 0x1061c524 <memset+68>
eflags 0x10202 66050
cs 0x43 67
ss 0x3b 59
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
procstat -v managesieve-login.core
PID START END PRT RES PRES REF SHD FL TP PATH
63755 0x400000 0x40b000 r-x 7 8 1 0 CN-- vn
/usr/local/libexec/dovecot/managesieve-login
63755 0x60b000 0x60c000 rw- 1 1 1 0 ---- df
63755 0x1060b000 0x10629000 r-x 30 30 32 0 CN-- vn
/libexec/ld-elf.so.1
63755 0x10629000 0x1063a000 rw- 11 11 1 0 ---- df
63755 0x1063a000 0x1063b000 r-- 1 387 64 31 CN-- vn
/lib/libc.so.7
63755 0x10828000 0x1082a000 rw- 2 2 1 0 ---- df
63755 0x1082a000 0x1084b000 r-x 27 28 18 9 CN-- vn
/usr/local/lib/dovecot/libdovecot-login.so.0.0.0
63755 0x1084b000 0x10a4a000 --- 0 0 1 0 ---- df
63755 0x10a4a000 0x10a4c000 rw- 2 0 1 0 C--- vn
/usr/local/lib/dovecot/libdovecot-login.so.0.0.0
63755 0x10a4c000 0x10aaf000 r-x 80 90 28 14 CN-- vn
/usr/lib/libssl.so.7
63755 0x10aaf000 0x10caf000 --- 0 0 1 0 ---- df
63755 0x10caf000 0x10cb9000 rw- 10 0 1 0 C--- vn
/usr/lib/libssl.so.7
63755 0x10cb9000 0x10e86000 r-x 461 501 30 15 CN-- vn
/lib/libcrypto.so.7
63755 0x10e86000 0x11086000 --- 0 0 1 0 ---- df
63755 0x11086000 0x110ae000 rw- 40 0 1 0 C--- vn
/lib/libcrypto.so.7
63755 0x110ae000 0x110b0000 rw- 0 0 0 0 ---- --
63755 0x110b0000 0x111fd000 r-x 213 219 36 18 CN-- vn
/usr/local/lib/dovecot/libdovecot.so.0.0.0
63755 0x111fd000 0x113fc000 --- 0 0 1 0 ---- df
63755 0x113fc000 0x11403000 rw- 7 0 1 0 C--- vn
/usr/local/lib/dovecot/libdovecot.so.0.0.0
63755 0x11403000 0x11405000 rw- 0 0 0 0 ---- --
63755 0x11405000 0x1157d000 r-x 376 387 64 31 CN-- vn
/lib/libc.so.7
63755 0x1157d000 0x1177c000 --- 0 0 2 0 ---- df
63755 0x1177c000 0x11788000 rw- 12 0 1 0 C--- vn
/lib/libc.so.7
63755 0x11788000 0x117b2000 --- 0 0 2 0 ---- df
63755 0x7ffffffdf000 0x7ffffffff000 rw- 3 3 1 0 ---D df
63755 0x7ffffffff000 0x800000000000 r-x 1 1 34 0 ---- ph
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