Re: [PATCH v2] selftests: fix relative rpath usage

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Hello,

kernel test robot noticed "segfault_at_ip_sp_error" on:

commit: 782e28421b3410522d5b50feb30e8fa10da44492 ("[PATCH v2] selftests: fix relative rpath usage")
url: https://github.com/intel-lab-lkp/linux/commits/Eugene-Syromiatnikov/selftests-fix-relative-rpath-usage/20240814-091042
base: https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git next
patch link: https://lore.kernel.org/all/20240812165650.GA5102@xxxxxxxxxxxxxxxxx/
patch subject: [PATCH v2] selftests: fix relative rpath usage

in testcase: kernel-selftests
version: kernel-selftests-x86_64-977d51cf-1_20240508
with following parameters:

	group: group-01



compiler: gcc-12
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)


besides, we also noticed some tests failed on this change:

8afc0816f5f6213c 782e28421b3410522d5b50feb30
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :4          100%           4:4     dmesg.segfault_at_ip_sp_error
           :4          100%           4:4     kernel-selftests.exec.load_address.static.0x1000.fail
           :4          100%           4:4     kernel-selftests.exec.load_address.static.0x1000000.fail
           :4          100%           4:4     kernel-selftests.exec.load_address.static.0x200000.fail



If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202408251749.7e390194-oliver.sang@xxxxxxxxx



user  :notice: [  458.511077] 2024-08-23 12:25:42 make -j36 -C dt

user  :notice: [  458.527252] make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-782e28421b3410522d5b50feb30e8fa10da44492/tools/testing/selftests/dt'

kern  :info  : [  460.458153] load_address.st[7491]: segfault at 28 ip 00007f1137a2b5e6 sp 00007ffddc0fd6d0 error 4 in load_address.static.0x1000[d5e6,7f1137a27000+7a000] likely on CPU 2 (core 2, socket 0)
kern :info : [ 460.459808] Code: 53 48 81 ec d8 00 00 00 48 89 b5 68 ff ff ff 48 89 95 38 ff ff ff 89 8d 54 ff ff ff 4c 89 85 48 ff ff ff 44 89 8d 50 ff ff ff <64> 48 8b 04 25 28 00 00 00 48 89 45 c8 31 c0 48 c7 85 70 ff ff ff
All code
========
   0:	53                   	push   %rbx
   1:	48 81 ec d8 00 00 00 	sub    $0xd8,%rsp
   8:	48 89 b5 68 ff ff ff 	mov    %rsi,-0x98(%rbp)
   f:	48 89 95 38 ff ff ff 	mov    %rdx,-0xc8(%rbp)
  16:	89 8d 54 ff ff ff    	mov    %ecx,-0xac(%rbp)
  1c:	4c 89 85 48 ff ff ff 	mov    %r8,-0xb8(%rbp)
  23:	44 89 8d 50 ff ff ff 	mov    %r9d,-0xb0(%rbp)
  2a:*	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax		<-- trapping instruction
  31:	00 00 
  33:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
  37:	31 c0                	xor    %eax,%eax
  39:	48                   	rex.W
  3a:	c7                   	.byte 0xc7
  3b:	85 70 ff             	test   %esi,-0x1(%rax)
  3e:	ff                   	(bad)  
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax
   7:	00 00 
   9:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   d:	31 c0                	xor    %eax,%eax
   f:	48                   	rex.W
  10:	c7                   	.byte 0xc7
  11:	85 70 ff             	test   %esi,-0x1(%rax)
  14:	ff                   	(bad)  
  15:	ff                   	.byte 0xff
kern  :info  : [  460.571500] load_address.st[7510]: segfault at 28 ip 00007fa9ec0045e6 sp 00007ffd3ba861b0 error 4 in load_address.static.0x200000[2045e6,7fa9ec000000+7a000] likely on CPU 2 (core 2, socket 0)
kern :info : [ 460.573155] Code: 53 48 81 ec d8 00 00 00 48 89 b5 68 ff ff ff 48 89 95 38 ff ff ff 89 8d 54 ff ff ff 4c 89 85 48 ff ff ff 44 89 8d 50 ff ff ff <64> 48 8b 04 25 28 00 00 00 48 89 45 c8 31 c0 48 c7 85 70 ff ff ff
All code
========
   0:	53                   	push   %rbx
   1:	48 81 ec d8 00 00 00 	sub    $0xd8,%rsp
   8:	48 89 b5 68 ff ff ff 	mov    %rsi,-0x98(%rbp)
   f:	48 89 95 38 ff ff ff 	mov    %rdx,-0xc8(%rbp)
  16:	89 8d 54 ff ff ff    	mov    %ecx,-0xac(%rbp)
  1c:	4c 89 85 48 ff ff ff 	mov    %r8,-0xb8(%rbp)
  23:	44 89 8d 50 ff ff ff 	mov    %r9d,-0xb0(%rbp)
  2a:*	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax		<-- trapping instruction
  31:	00 00 
  33:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
  37:	31 c0                	xor    %eax,%eax
  39:	48                   	rex.W
  3a:	c7                   	.byte 0xc7
  3b:	85 70 ff             	test   %esi,-0x1(%rax)
  3e:	ff                   	(bad)  
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax
   7:	00 00 
   9:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   d:	31 c0                	xor    %eax,%eax
   f:	48                   	rex.W
  10:	c7                   	.byte 0xc7
  11:	85 70 ff             	test   %esi,-0x1(%rax)
  14:	ff                   	(bad)  
  15:	ff                   	.byte 0xff
kern  :info  : [  460.677410] load_address.st[7529]: segfault at 28 ip 00007f9a020045e6 sp 00007ffe4bb51e10 error 4 in load_address.static.0x1000000[10045e6,7f9a02000000+7a000] likely on CPU 2 (core 2, socket 0)
kern :info : [ 460.679071] Code: 53 48 81 ec d8 00 00 00 48 89 b5 68 ff ff ff 48 89 95 38 ff ff ff 89 8d 54 ff ff ff 4c 89 85 48 ff ff ff 44 89 8d 50 ff ff ff <64> 48 8b 04 25 28 00 00 00 48 89 45 c8 31 c0 48 c7 85 70 ff ff ff
All code
========
   0:	53                   	push   %rbx
   1:	48 81 ec d8 00 00 00 	sub    $0xd8,%rsp
   8:	48 89 b5 68 ff ff ff 	mov    %rsi,-0x98(%rbp)
   f:	48 89 95 38 ff ff ff 	mov    %rdx,-0xc8(%rbp)
  16:	89 8d 54 ff ff ff    	mov    %ecx,-0xac(%rbp)
  1c:	4c 89 85 48 ff ff ff 	mov    %r8,-0xb8(%rbp)
  23:	44 89 8d 50 ff ff ff 	mov    %r9d,-0xb0(%rbp)
  2a:*	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax		<-- trapping instruction
  31:	00 00 
  33:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
  37:	31 c0                	xor    %eax,%eax
  39:	48                   	rex.W
  3a:	c7                   	.byte 0xc7
  3b:	85 70 ff             	test   %esi,-0x1(%rax)
  3e:	ff                   	(bad)  
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax
   7:	00 00 
   9:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   d:	31 c0                	xor    %eax,%eax
   f:	48                   	rex.W
  10:	c7                   	.byte 0xc7
  11:	85 70 ff             	test   %esi,-0x1(%rax)
  14:	ff                   	(bad)  
  15:	ff                   	.byte 0xff
kern  :warn  : [  460.793864] process 'recursion-depth' launched '/tmp/1' with NULL argv: empty string added
user  :err   : [  461.202285] fixup_efivarfs failed

user  :err   : [  462.541150]   /lkp/lkp/src/lib/debug.sh:12: die



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240825/202408251749.7e390194-oliver.sang@xxxxxxxxx



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki





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