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Groups > linux.debian.bugs.dist > #1155485

Bug#1033656: bt full with dbgsym

From Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Newsgroups linux.debian.bugs.dist
Subject Bug#1033656: bt full with dbgsym
Date 2023-07-23 17:00 +0200
Message-ID <GUIIV-2dTL-5@gated-at.bofh.it> (permalink)
References <GeEvf-fWGq-9@gated-at.bofh.it> <GeEEW-fWZd-3@gated-at.bofh.it> <GeEvf-fWGq-9@gated-at.bofh.it> <GeEEW-fWZd-3@gated-at.bofh.it>
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Control: affects -1 + minidlna

The same bug affects minidlna:

uwe@crater:~$ gdb /usr/sbin/minidlnad
GNU gdb (Debian 13.1-3) 13.1
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "arm-linux-gnueabihf".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
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Reading symbols from /usr/sbin/minidlnad...
Reading symbols from /usr/lib/debug/.build-id/8d/c7b33336b6d717dcb1c814fff9a3e5a4dba526.debug...
(gdb) run
Starting program: /usr/sbin/minidlnad
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1".

Program received signal SIGILL, Illegal instruction.
hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long> (values=0xbeffecb8, num_values=256)
    at ./hwy/nanobenchmark.cc:214
214	./hwy/nanobenchmark.cc: No such file or directory.
(gdb) disassemble
Dump of assembler code for function hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long>(unsigned long long*, size_t):
   0xb546afb0 <+0>:	stmdb	sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr}
   0xb546afb4 <+4>:	mov	r9, r1
   0xb546afb6 <+6>:	ldr	r1, [pc, #492]	@ (0xb546b1a4 <hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long>(unsigned long long*, size_t)+500>)
   0xb546afb8 <+8>:	sub	sp, #52	@ 0x34
   0xb546afba <+10>:	ldr	r2, [pc, #492]	@ (0xb546b1a8 <hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long>(unsigned long long*, size_t)+504>)
   0xb546afbc <+12>:	add	r1, pc
=> 0xb546afbe <+14>:	vmov.i32	d16, #0	@ 0x00000000
   0xb546afc2 <+18>:	movs	r6, #0
   0xb546afc4 <+20>:	str	r6, [sp, #16]
   0xb546afc6 <+22>:	ldr	r2, [r1, r2]
   0xb546afc8 <+24>:	ldr	r2, [r2, #0]
   0xb546afca <+26>:	str	r2, [sp, #44]	@ 0x2c
   0xb546afcc <+28>:	mov.w	r2, #0
   0xb546afd0 <+32>:	vstr	d16, [sp, #8]
   0xb546afd4 <+36>:	cmp.w	r9, #0
   0xb546afd8 <+40>:	beq.w	0xb546b180 <hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long>(unsigned long long*, size_t)+464>
   0xb546afdc <+44>:	mov	r4, r0
   0xb546afde <+46>:	mov	r5, r6
   0xb546afe0 <+48>:	mov	r8, r6
   0xb546afe2 <+50>:	mov.w	r10, #1
   0xb546afe6 <+54>:	add.w	r11, sp, #24
   0xb546afea <+58>:	sub.w	r3, r0, #8
   0xb546afee <+62>:	str	r3, [sp, #4]
   0xb546aff0 <+64>:	ldr	r2, [sp, #4]
   0xb546aff2 <+66>:	subs	r3, r5, r6
   0xb546aff4 <+68>:	mov.w	r12, r3, asr #6
   0xb546aff8 <+72>:	asrs	r0, r3, #4
   0xb546affa <+74>:	ldr.w	r1, [r2, #8]!
   0xb546affe <+78>:	cmp.w	r12, #0
   0xb546b002 <+82>:	str	r2, [sp, #4]
   0xb546b004 <+84>:	ldr	r2, [r2, #4]
   0xb546b006 <+86>:	ble.w	0xb546b19a <hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long>(unsigned long long*, size_t)+490>
   0xb546b00a <+90>:	add.w	r12, r6, r12, lsl #6
   0xb546b00e <+94>:	mov	r3, r6
   0xb546b010 <+96>:	b.n	0xb546b03c <hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long>(unsigned long long*, size_t)+140>
   0xb546b012 <+98>:	ldrd	r0, r7, [r3, #16]
--Type <RET> for more, q to quit, c to continue without paging--q
Quit
(gdb) bt
#0  hwy::(anonymous namespace)::robust_statistics::CountingSort<unsigned long long> (values=0xbeffecb8, num_values=256)
    at ./hwy/nanobenchmark.cc:214
#1  0xb546b256 in hwy::(anonymous namespace)::robust_statistics::Mode<unsigned long long> (num_values=256, values=0xbeffecb8)
    at ./hwy/nanobenchmark.cc:286
#2  hwy::(anonymous namespace)::robust_statistics::Mode<unsigned long long, 256> (values=...) at ./hwy/nanobenchmark.cc:292
#3  hwy::platform::TimerResolution () at ./hwy/nanobenchmark.cc:480
#4  0xb5469e0e in __static_initialization_and_destruction_0 (__priority=65535, __initialize_p=1) at ./hwy/nanobenchmark.cc:488
#5  _GLOBAL__sub_I_nanobenchmark.cc(void) () at ./hwy/nanobenchmark.cc:763
#6  0xb6fe444c in call_init (env=0xbefff53c, argv=0xbefff534, argc=1, l=<optimized out>) at dl-init.c:70
#7  call_init (l=<optimized out>, argc=1, argv=0xbefff534, env=0xbefff53c) at dl-init.c:26
#8  0xb6fe44f2 in _dl_init (main_map=0xb6fffa68, argc=1, argv=0xbefff534, env=0xbefff53c) at dl-init.c:117
#9  0xb6ff17cc in _dl_start_user () from /lib/ld-linux-armhf.so.3
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)

I installed 1.0.5~git20230620.ed184dc-3 from expermental, that doesn't
fix the problem.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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Bug#1033656: bt full with dbgsym Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2023-07-23 17:00 +0200

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