https://bugs.kde.org/show_bug.cgi?id=378494
Bug ID: 378494
Summary: Debugee terminates on any signal
Product: Heaptrack
Version: unspecified
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: m...@milianw.de
Reporter: maxim.go...@gmail.com
Target Milestone: ---
Created attachment 104899
--> https://bugs.kde.org/attachment.cgi?id=104899&action=edit
A reproducer which handles SIGTERM
When running under heaptrack, a debuggee is terminated upon receiving any
signal even when it handles that signal. As a result, no memory cleanup on
shutdown happens and heaptrack reports false positives for memory leaks.
OS: Centos 7.2
Heaptrack version: c513793b
Reproduction steps:
# Build
~/work/heaptrack-eval $ g++ -std=c++11 -pthread test.cpp
# Interrupt by Ctrl-C
~/work/heaptrack-eval $ ./a.out
Started, press Ctrl-C to abort
^CInterrupted
Done.
# Interrrupt by "kill -TERM `pidof a.out`"
~/work/heaptrack-eval $ ./a.out
Started, press Ctrl-C to abort
Interrupted
Done.
# Run under heaptrack and interrupt by "kill -TERM `pidof a.out`"
~/work/heaptrack-eval $ heaptrack ./a.out
heaptrack output will be written to
"/home/centos/work/heaptrack-eval/heaptrack.a.out.20509.gz"
starting application, this might take some time...
Started, press Ctrl-C to abort
heaptrack stats:
allocations: 2
leaked allocations: 2
temporary allocations: 0
/usr/local/bin/heaptrack: line 195: 20525 Terminated
LD_PRELOAD=$LIBHEAPTRACK_PRELOAD${LD_PRELOAD:+:$LD_PRELOAD}
DUMP_HEAPTRACK_OUTPUT="$pipe" "$client" "$@"
Heaptrack finished! Now run the following to investigate the data:
heaptrack_print "/home/centos/work/heaptrack-eval/heaptrack.a.out.20509.gz" |
less
# Check for leaks - `p` is not freed
centos@maxim-dev7 ~/work/heaptrack-eval $ heaptrack_print -l 1
"/home/centos/work/heaptrack-eval/heaptrack.a.out.20509.gz"
reading file "/home/centos/work/heaptrack-eval/heaptrack.a.out.20509.gz" -
please wait, this might take some time...
Debuggee command was: ./a.out
Failed to read time stamp: c
finished reading file, now analyzing data:
MOST CALLS TO ALLOCATION FUNCTIONS
1 calls to allocation functions with 1000.00B peak consumption from
main
in /home/centos/work/heaptrack-eval/a.out
1 calls with 1000.00B peak consumption from:
1 calls to allocation functions with 608B peak consumption from
_dl_allocate_tls
in /lib64/ld-linux-x86-64.so.2
1 calls with 608B peak consumption from:
__pthread_create_2_1
in /lib64/libpthread.so.0
main
in /home/centos/work/heaptrack-eval/a.out
PEAK MEMORY CONSUMERS
WARNING - the data below is not an accurate calcuation of the total peak
consumption and can easily be wrong.
For an accurate overview, disable backtrace merging.
1000.00B peak memory consumed over 1 calls from
main
in /home/centos/work/heaptrack-eval/a.out
1000.00B consumed over 1 calls from:
608B peak memory consumed over 1 calls from
_dl_allocate_tls
in /lib64/ld-linux-x86-64.so.2
608B consumed over 1 calls from:
__pthread_create_2_1
in /lib64/libpthread.so.0
main
in /home/centos/work/heaptrack-eval/a.out
MEMORY LEAKS
1000.00B leaked over 1 calls from
main
in /home/centos/work/heaptrack-eval/a.out
1000.00B leaked over 1 calls from:
608B leaked over 1 calls from
_dl_allocate_tls
in /lib64/ld-linux-x86-64.so.2
608B leaked over 1 calls from:
__pthread_create_2_1
in /lib64/libpthread.so.0
main
in /home/centos/work/heaptrack-eval/a.out
MOST TEMPORARY ALLOCATIONS
total runtime: 2.73s.
bytes allocated in total (ignoring deallocations): 1.61KB (590B/s)
calls to allocation functions: 2 (0/s)
temporary memory allocations: 0 (0/s)
peak heap memory consumption: 1.61KB
peak RSS (including heaptrack overhead): 4.35MB
total memory leaked: 1.61KB
# Same scenario with "kill -HUP `pidof a.out`"
~/work/heaptrack-eval $ heaptrack ./a.out
heaptrack output will be written to
"/home/centos/work/heaptrack-eval/heaptrack.a.out.21914.gz"
starting application, this might take some time...
Started, press Ctrl-C to abort
heaptrack stats:
allocations: 2
leaked allocations: 2
temporary allocations: 0
/usr/local/bin/heaptrack: line 195: 21935 Hangup
LD_PRELOAD=$LIBHEAPTRACK_PRELOAD${LD_PRELOAD:+:$LD_PRELOAD}
DUMP_HEAPTRACK_OUTPUT="$pipe" "$client" "$@"
Heaptrack finished! Now run the following to investigate the data:
heaptrack_print "/home/centos/work/heaptrack-eval/heaptrack.a.out.21914.gz" |
less
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