https://bugs.kde.org/show_bug.cgi?id=405295
Bug ID: 405295
Summary: valgrind 3.14.0 dies due to mysterious DWARF
information? (output from rust used by Mozilla TB.)
Product: valgrind
Version: 3.14.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: critical
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: ishik...@yk.rim.or.jp
Target Milestone: ---
SUMMARY
I tried to run the latest mozilla thundebird under valgrind.
These days mozilla code uses the binary from rust compiler.
valgrind 3.14.0 under Debian GNU/Linux 64-bit version barfed on rust
library file.
STEPS TO REPRODUCE
1. Run thunderbird under valgrind as below.
YMMV. I show the command that was used to invoke TB under valgrind using my
local directory layout.
2. valgrind dies with segfault after printing the following message:
parse DIE(readdwarf3.c:3123): confused by:
<0><25e98>: Abbrev Number: 1 (DW_TAG_compile_unit)
DW_AT_producer : (indirect string, offset: 0x16635): clang LLVM (rustc
version 1.33.0 (2aa4c46cf 2019-02-28))
DW_AT_language : 28
DW_AT_name : (indirect string, offset: 0x1666e):
toolkit/library/rust/shared/lib.rs
DW_AT_stmt_list : 61687424
DW_AT_comp_dir : (indirect string, offset: 0x16691):
/NREF-COMM-CENTRAL/mozilla
DW_AT_??? : 1
DW_AT_low_pc : 0x0
DW_AT_ranges : 48624688
parse_type_DIE:
--3863-- WARNING: Serious error when reading debug info
--3863-- When reading debug info from
/KERNEL-SRC/moz-obj-dir/objdir-tb3/toolkit/library/libxul.so:
--3863-- confused by the above DIE
Segmentation fault
3.
OBSERVED RESULT
segmentation error.
EXPECTED RESULT
Normal operation.
SOFTWARE/OS VERSIONS
Debian GNU/Linux amd64 version.
Linux ip030 4.19.0-1-amd64 #1 SMP Debian 4.19.12-1 (2018-12-22) x86_64
GNU/Linux
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
Full command output on the console where valgrind is invoked.
Using profile dir: /tmp/mozmillprofile
run-valgrind (masquerading as thunderbird binary)
final command line is:
valgrind --trace-children=yes --fair-sched=yes --smc-check=all-non-file
--gen-suppressions=all --vex-iropt-register-updates=allregs-at-mem-access
--track-origins=yes --child-silent-after-fork=yes
--trace-children-skip=/usr/bin/hg,/bin/rm,*/bin/certutil,*/bin/pk12util,*/bin/ssltunnel,*/bin/uname,*/bin/which,*/bin/ps,*/bin/grep,*/bin/java
--num-transtab-sectors=24 --tool=memcheck --freelist-vol=500000000
--redzone-size=128 --px-default=allregs-at-mem-access
--px-file-backed=unwindregs-at-mem-access --read-var-info=yes
--malloc-fill=0xA5 --free-fill=0xC3 --num-callers=50
--suppressions=$HOME/Dropbox/myown.sup --show-mismatched-frees=no
--show-possibly-lost=no --read-inline-info=yes
/KERNEL-SRC/moz-obj-dir/objdir-tb3/dist/bin/thunderbird-bin -jsbridge 24242
-foreground -profile /tmp/mozmillprofile
==3863== Memcheck, a memory error detector
==3863== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==3863== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==3863== Command: /KERNEL-SRC/moz-obj-dir/objdir-tb3/dist/bin/thunderbird-bin
-jsbridge 24242 -foreground -profile /tmp/mozmillprofile
==3863==
parse DIE(readdwarf3.c:3123): confused by:
<0><25e98>: Abbrev Number: 1 (DW_TAG_compile_unit)
DW_AT_producer : (indirect string, offset: 0x16635): clang LLVM (rustc
version 1.33.0 (2aa4c46cf 2019-02-28))
DW_AT_language : 28
DW_AT_name : (indirect string, offset: 0x1666e):
toolkit/library/rust/shared/lib.rs
DW_AT_stmt_list : 61687424
DW_AT_comp_dir : (indirect string, offset: 0x16691):
/NREF-COMM-CENTRAL/mozilla
DW_AT_??? : 1
DW_AT_low_pc : 0x0
DW_AT_ranges : 48624688
parse_type_DIE:
--3863-- WARNING: Serious error when reading debug info
--3863-- When reading debug info from
/KERNEL-SRC/moz-obj-dir/objdir-tb3/toolkit/library/libxul.so:
--3863-- confused by the above DIE
Segmentation fault
^CTraceback (most recent call last):
File "runtestlist.py", line 142, in <module>
line = proc.stdout.readline()
KeyboardInterrupt
make: *** [/NREF-COMM-CENTRAL/mozilla/comm/mail/testsuite-targets.mk:31:
mozmill] Interrupt
ishikawa@ip030:/tmp$ uname -a
Linux ip030 4.19.0-1-amd64 #1 SMP Debian 4.19.12-1 (2018-12-22) x86_64
GNU/Linux
ishikawa@ip030:/tmp$
Thank you in advance for your attention.
PS: I know it could be due to rust producing incorrect DWARF output, but I have
no idea. I wanted to check with you first.
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