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From: Philippe W. <phi...@so...> - 2019-08-31 13:16:41
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=7ed5a7901808576be005be9865da375233c7df64 commit 7ed5a7901808576be005be9865da375233c7df64 Author: Philippe Waroquiers <phi...@sk...> Date: Sat Aug 31 15:15:26 2019 +0200 Announce fix 411134 Allow the user to change a set of command line options during execution Note that the fix for 411134 contains a bunch of white space only changes. To see the diff without the white spaces, do: git diff -w 3a803036^..3a803036 Diff: --- NEWS | 1 + 1 file changed, 1 insertion(+) diff --git a/NEWS b/NEWS index 07624d4..10d922c 100644 --- a/NEWS +++ b/NEWS @@ -75,6 +75,7 @@ where XXXXXX is the bug number as listed below. 409141 Valgrind hangs when SIGKILLed 409367 exit_group() after signal to thread waiting in futex() causes hangs 410599 Non-deterministic behaviour of pth_self_kill_15_other test +411134 Allow the user to change a set of command line options during execution n-i-bz Fix minor one time leaks in dhat. n-i-bz Add --run-cxx-freeres=no in outer args to avoid inner crashes. |
|
From: Philippe W. <phi...@sk...> - 2019-08-31 07:05:31
|
On Tue, 2019-08-27 at 15:56 +0100, João M. S. Silva wrote: > Hello, > > I have run the same scenario in 4 situations: 2 versions of the > program and with/without "-Wl,-Ttext-segment=0x68000000". > > Below I show the results. > > I'm analysing these with the help of Adacore. Notwithstanding, do you > know if any of these errors are from Valgrind (with the exception of > case A. 1. which I reported in the bug tracker)? Or are all of these > problems in Ada libs? > > Scenario: what_if_test_cflman_ib5a.txt > > A. build FS06, revision 212246 > > 1. without "-Wl,-Ttext-segment=0x68000000" > > valgrind: mmap(0xaea000, 4186329088) failed in UME with error 22 > (Invalid argument). > valgrind: this can be caused by executables with very large text, data > or bss segments. > > 2. with "-Wl,-Ttext-segment=0x68000000" > > ==20569== Warning: set address range perms: large range [0x686ea000, > 0x161f4f000) (defined) > ==20569== Thread 2 CWP_Processing_C: > ==20569== Invalid write of size 4 > ==20569== at 0x68406EC3: system__stack_usage__fill_stack (in > /home/AltranUK/jsilva.fs/svn/integration_r212246/FWP/FWP_Engine/pw_fwp_engine.eab) > ==20569== by 0x683F33DD: system__tasking__stages__task_wrapper (in > /home/AltranUK/jsilva.fs/svn/integration_r212246/FWP/FWP_Engine/pw_fwp_engine.eab) > ==20569== by 0x57A7DD4: start_thread (in /usr/lib64/libpthread-2.17.so) > ==20569== by 0x6766EAC: clone (in /usr/lib64/libc-2.17.so) > ==20569== Address 0xc9ba9b8 is on thread 2's stack > ==20569== 272 bytes below stack pointer Fill_Stack is the gnat runtime function used by the stack analyser to report how much of a task stack was used. It works by 'painting' the stack. Valgrind reports an error because normal programs do not touch the stack below their stack pointer. > ==20569== > ==20569== Warning: client switching stacks? SP change: 0x195b4890 --> > 0x1979ce88 > ==20569== to suppress, use: --max-stackframe=2000376 or greater > ==20569== Warning: client switching stacks? SP change: 0x19c16e70 --> > 0x19dff468 > ==20569== to suppress, use: --max-stackframe=2000376 or greater > ==20569== Warning: client switching stacks? SP change: 0x19017d50 --> > 0x19200348 > ==20569== to suppress, use: --max-stackframe=2000376 or greater > ==20569== further instances of this message will not be shown. > ==20569== Thread 4 FDP_Invoke_TP_FP: > ==20569== Invalid read of size 4 > ==20569== at 0x684070F1: system__stack_usage__compute_result (in > /home/AltranUK/jsilva.fs/svn/integration_r212246/FWP/FWP_Engine/pw_fwp_engine.eab) > ==20569== by 0x683F34B6: system__tasking__stages__task_wrapper (in > /home/AltranUK/jsilva.fs/svn/integration_r212246/FWP/FWP_Engine/pw_fwp_engine.eab) > ==20569== by 0x57A7DD4: start_thread (in /usr/lib64/libpthread-2.17.so) > ==20569== by 0x6766EAC: clone (in /usr/lib64/libc-2.17.so) > ==20569== Address 0xcab2440 is on thread 4's stack > ==20569== 54920 bytes below stack pointer Similarly, Compute_Result is accessing the stack below the stack pointer to compute how much of the filled in pattern was replaced by 'real stack usage'. > > B. build FS07, revision 221726 > > 1. without "-Wl,-Ttext-segment=0x68000000" > > a. without vgdb > > ==26266== Warning: set address range perms: large range [0xaf0000, > 0x13f14000) (defined) > ==26266== > ==26266== Process terminating with default action of signal 6 (SIGABRT) > ==26266== at 0x165B3207: raise (in /usr/lib64/libc-2.17.so) > ==26266== by 0x165B4A37: abort (in /usr/lib64/libc-2.17.so) > ==26266== by 0x16375E90: uw_init_context_1 (unwind-dw2.c:1580) > ==26266== by 0x16376A17: _Unwind_Backtrace (unwind.inc:283) > ==26266== by 0x8176E0: __gnat_backtrace (in > /home/AltranUK/jsilva.fs/svn/integration/FWP/FWP_Engine/pw_fwp_engine.eab) > ==26266== by 0x80D2DC: system__traceback__call_chain__2 (s-traceb.adb:93) > ==26266== by 0x80D304: system__traceback__call_chain (s-traceb.adb:109) > ==26266== by 0x7FE149: ada__exceptions__call_chain (a-excach.adb:65) > ==26266== by 0x7FE29C: ada__exceptions__complete_occurrence > (a-except.adb:928) > ==26266== by 0x7FE2CC: > ada__exceptions__complete_and_propagate_occurrence (a-except.adb:942) > ==26266== by 0x7FE669: ada__exceptions__raise_with_location_and_msg > (a-except.adb:1168) > ==26266== by 0x7FE624: __gnat_raise_storage_error_msg (a-except.adb:1145) The above seems to be an error reported with the default value of --num-callers (12). It might be good to increase the value to have a bigger stacktrace. > > b. with vgdb > > 0x0000000013f15120 in adaptation.airspace_adaptation.default_hold_overlap () > from /lib64/ld-linux-x86-64.so.2 > (gdb) c > Continuing. > > Program received signal SIGSEGV, Segmentation fault. > 0x000000000046d98c in > <adaptation__airspace_adaptation__segmented_holds___elabs> () > at /home/AltranUK/jsilva.fs/svn/integration/FWP/Common/Adaptation/adaptation-airspace_adaptation-segmented_holds.ads:472 > 472 (Length => Airspace_Adaptation.Hold_Volumes_Length'First, You will probably have to understand why you get SIGSEGV, as this is likely to be the origin of the below abort. As a wildguess, maybe stack size limit ? > (gdb) c > Continuing. > > Program received signal SIGABRT, Aborted. > 0x00000000165b3207 in > adaptation.airspace_adaptation.segmented_holds.segmented_hold_volumes > () from /lib64/libc.so.6 > (gdb) c > Continuing. > > Program received signal SIGABRT, Aborted. > 0x00000000165b3207 in > adaptation.airspace_adaptation.segmented_holds.segmented_hold_volumes > () from /lib64/libc.so.6 > (gdb) c > Continuing. > > Program terminated with signal SIGABRT, Aborted. > The program no longer exists. > > 2. with "-Wl,-Ttext-segment=0x68000000" > > a. without vgdb > > Execution of ./FWP/FWP_Engine/pw_fwp_engine.eab terminated by > unhandled exception > raised STORAGE_ERROR : s-intman.adb:136 explicit raise > Call stack traceback locations: > 0x683fa8cf 0x57af5ce 0x6806d98a 0x68009cf9 0x6800b67d 0x668b3d3 > 0x6800824d 0xfffffffffffffffe > > ==31250== Warning: set address range perms: large range [0x686f0000, > 0x7bb14000) (defined) > ==31250== Invalid write of size 1 > ==31250== at 0x6806D98C: > adaptation__airspace_adaptation__segmented_holds___elabs > (adaptation-airspace_adaptation-segmented_holds.ads:472) > ==31250== by 0x68009CFA: adainit (b__fwp_engine.adb:1239) > ==31250== by 0x6800B67E: main (b__fwp_engine.adb:1745) > ==31250== Address 0x7d81a3e0 is not stack'd, malloc'd or (recently) free'd > > b. with vgdb > > 0x0000000004001120 in _start () from /lib64/ld-linux-x86-64.so.2 > (gdb) c > Continuing. > > Program received signal SIGTRAP, Trace/breakpoint trap. > 0x000000006806d98c in > <adaptation__airspace_adaptation__segmented_holds___elabs> () > at /home/AltranUK/jsilva.fs/svn/integration/FWP/Common/Adaptation/adaptation-airspace_adaptation-segmented_holds.ads:472 > 472 (Length => Airspace_Adaptation.Hold_Volumes_Length'First, > (gdb) c > Continuing. > > Program received signal SIGSEGV, Segmentation fault. > 0x000000006806d98c in > <adaptation__airspace_adaptation__segmented_holds___elabs> () > at /home/AltranUK/jsilva.fs/svn/integration/FWP/Common/Adaptation/adaptation-airspace_adaptation-segmented_holds.ads:472 > 472 (Length => Airspace_Adaptation.Hold_Volumes_Length'First, > (gdb) c > Continuing. > [Inferior 1 (Remote target) exited with code 01] > > João M. S. Silva |