lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <20210331081330.GB32402@xsang-OptiPlex-9020>
Date:   Wed, 31 Mar 2021 16:13:30 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com
Subject: [block]  4c95131e3c: kernel_BUG_at_block/bio.c



Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 4c95131e3cb8bbb08c3b370b4ae3611874b48be0 ("block: enable use of bio allocation cache")
https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git io_uring-bio-cache


in testcase: ocfs2test
version: ocfs2test-x86_64-d802bf7-1_20210329
with following parameters:

	disk: 1HDD
	test: test-reserve_space
	ucode: 0x21



on test machine: 8 threads Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz with 16G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):



If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>


[   47.859997] kernel BUG at block/bio.c:628!
[   47.860086] invalid opcode: 0000 [#1] SMP PTI
[   47.860167] CPU: 5 PID: 5042 Comm: mkfs.ocfs2 Not tainted 5.12.0-rc5-00060-g4c95131e3cb8 #1
[   47.860317] Hardware name:  /DZ77BH-55K, BIOS BHZ7710H.86A.0097.2012.1228.1346 12/28/2012
[   47.860445] RIP: 0010:__bio_put (kbuild/src/consumer/block/bio.c:628 kbuild/src/consumer/block/bio.c:623) 
[ 47.860514] Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f6 47 14 40 74 0f 8b 47 64 85 c0 74 0e f0 ff 4f 64 0f 94 c0 c3 b8 01 00 00 00 c3 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00
All code
========
   0:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
   7:	00 00 00 
   a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   f:	f6 47 14 40          	testb  $0x40,0x14(%rdi)
  13:	74 0f                	je     0x24
  15:	8b 47 64             	mov    0x64(%rdi),%eax
  18:	85 c0                	test   %eax,%eax
  1a:	74 0e                	je     0x2a
  1c:	f0 ff 4f 64          	lock decl 0x64(%rdi)
  20:	0f 94 c0             	sete   %al
  23:	c3                   	retq   
  24:	b8 01 00 00 00       	mov    $0x1,%eax
  29:	c3                   	retq   
  2a:*	0f 0b                	ud2    		<-- trapping instruction
  2c:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  33:	00 00 00 00 
  37:	66                   	data16
  38:	66                   	data16
  39:	2e                   	cs
  3a:	0f                   	.byte 0xf
  3b:	1f                   	(bad)  
  3c:	84 00                	test   %al,(%rax)
	...

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2    
   2:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
   9:	00 00 00 00 
   d:	66                   	data16
   e:	66                   	data16
   f:	2e                   	cs
  10:	0f                   	.byte 0xf
  11:	1f                   	(bad)  
  12:	84 00                	test   %al,(%rax)
	...
[   47.860801] RSP: 0018:ffffc9000d42fc88 EFLAGS: 00010246
[   47.860885] RAX: 0000000000000000 RBX: ffffc9000d42fe80 RCX: 0000000000000002
[   47.860998] RDX: ffff88841a9a4f00 RSI: ffff88841a9a4f00 RDI: ffff88841b721318
[   47.861109] RBP: ffff88841b721318 R08: ffff88841b721318 R09: 000000000002ab30
[   47.861221] R10: 00000000000002c8 R11: ffff88841f36a144 R12: ffff88841b721318
[   47.861352] R13: ffffffff81395875 R14: 00000000ffffffff R15: ffff88841a9a4f00
[   47.861464] FS:  00007f5c66517280(0000) GS:ffff88841f340000(0000) knlGS:0000000000000000
[   47.861590] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.861681] CR2: 000055d13280c000 CR3: 0000000414e82006 CR4: 00000000001706e0
[   47.861793] Call Trace:
[   47.861836] bio_put (kbuild/src/consumer/block/bio.c:646) 
[   47.861888] __blkdev_direct_IO (kbuild/src/consumer/fs/block_dev.c:508) 
[   47.861959] generic_file_direct_write (kbuild/src/consumer/mm/filemap.c:3473) 
[   47.862037] __generic_file_write_iter (kbuild/src/consumer/mm/filemap.c:3661) 
[   47.862113] blkdev_write_iter (kbuild/src/consumer/fs/block_dev.c:1719 kbuild/src/consumer/fs/block_dev.c:1693) 
[   47.862181] new_sync_write (kbuild/src/consumer/fs/read_write.c:519 (discriminator 1)) 
[   47.862265] vfs_write (kbuild/src/consumer/fs/read_write.c:605) 
[   47.862322] ksys_pwrite64 (kbuild/src/consumer/include/linux/file.h:45 kbuild/src/consumer/fs/read_write.c:713) 
[   47.862381] do_syscall_64 (kbuild/src/consumer/arch/x86/entry/common.c:46) 
[   47.862443] entry_SYSCALL_64_after_hwframe (kbuild/src/consumer/arch/x86/entry/entry_64.S:112) 
[   47.862526] RIP: 0033:0x7f5c66692a37
[ 47.862586] Code: ff ff eb b6 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8d 05 c9 7c 0d 00 49 89 ca 8b 00 85 c0 75 10 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 c3 41 55 49 89 cd 41 54 49 89 d4 55 48 89
All code
========
   0:	ff                   	(bad)  
   1:	ff                   	(bad)  
   2:	eb b6                	jmp    0xffffffffffffffba
   4:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
   b:	00 00 00 
   e:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  13:	48 8d 05 c9 7c 0d 00 	lea    0xd7cc9(%rip),%rax        # 0xd7ce3
  1a:	49 89 ca             	mov    %rcx,%r10
  1d:	8b 00                	mov    (%rax),%eax
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 12 00 00 00       	mov    $0x12,%eax
  28:	0f 05                	syscall 
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 59                	ja     0x8b
  32:	c3                   	retq   
  33:	41 55                	push   %r13
  35:	49 89 cd             	mov    %rcx,%r13
  38:	41 54                	push   %r12
  3a:	49 89 d4             	mov    %rdx,%r12
  3d:	55                   	push   %rbp
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 59                	ja     0x61
   8:	c3                   	retq   
   9:	41 55                	push   %r13
   b:	49 89 cd             	mov    %rcx,%r13
   e:	41 54                	push   %r12
  10:	49 89 d4             	mov    %rdx,%r12
  13:	55                   	push   %rbp
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[   47.862872] RSP: 002b:00007fff50508cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
[   47.862990] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5c66692a37
[   47.863102] RDX: 0000000000100000 RSI: 000055d13270d200 RDI: 0000000000000004
[   47.863213] RBP: 0000000000100000 R08: 00007fff50508d54 R09: 0000000000000000
[   47.863344] R10: 0000000000060000 R11: 0000000000000246 R12: 0000000000060000
[   47.863456] R13: 0000000000000000 R14: 000055d130f9bbb0 R15: 000055d13270d200
[   47.863568] Modules linked in: ocfs2_stack_o2cb ocfs2_dlm ocfs2 ocfs2_nodemanager ocfs2_stackglue netconsole btrfs blake2b_generic xor zstd_compress raid6_pq libcrc32c intel_rapl_msr intel_rapl_common sd_mod t10_pi x86_pkg_temp_thermal intel_powerclamp sg i915 coretemp kvm_intel ipmi_devintf ipmi_msghandler intel_gtt drm_kms_helper kvm irqbypass crct10dif_pclmul crc32_pclmul syscopyarea crc32c_intel firewire_ohci ghash_clmulni_intel sysfillrect sysimgblt rapl fb_sys_fops ahci libahci intel_cstate mxm_wmi firewire_core libata crc_itu_t drm intel_uncore video wmi ip_tables
[   47.864367] ---[ end trace 497211d09e7fac70 ]---
[   47.864475] RIP: 0010:__bio_put (kbuild/src/consumer/block/bio.c:628 kbuild/src/consumer/block/bio.c:623) 
[ 47.864548] Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f6 47 14 40 74 0f 8b 47 64 85 c0 74 0e f0 ff 4f 64 0f 94 c0 c3 b8 01 00 00 00 c3 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00
All code
========
   0:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
   7:	00 00 00 
   a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   f:	f6 47 14 40          	testb  $0x40,0x14(%rdi)
  13:	74 0f                	je     0x24
  15:	8b 47 64             	mov    0x64(%rdi),%eax
  18:	85 c0                	test   %eax,%eax
  1a:	74 0e                	je     0x2a
  1c:	f0 ff 4f 64          	lock decl 0x64(%rdi)
  20:	0f 94 c0             	sete   %al
  23:	c3                   	retq   
  24:	b8 01 00 00 00       	mov    $0x1,%eax
  29:	c3                   	retq   
  2a:*	0f 0b                	ud2    		<-- trapping instruction
  2c:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  33:	00 00 00 00 
  37:	66                   	data16
  38:	66                   	data16
  39:	2e                   	cs
  3a:	0f                   	.byte 0xf
  3b:	1f                   	(bad)  
  3c:	84 00                	test   %al,(%rax)
	...

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2    
   2:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
   9:	00 00 00 00 
   d:	66                   	data16
   e:	66                   	data16
   f:	2e                   	cs
  10:	0f                   	.byte 0xf
  11:	1f                   	(bad)  
  12:	84 00                	test   %al,(%rax)


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install                job.yaml  # job file is attached in this email
        bin/lkp split-job --compatible job.yaml
        bin/lkp run                    compatible-job.yaml



---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang


View attachment "config-5.12.0-rc5-00060-g4c95131e3cb8" of type "text/plain" (172899 bytes)

View attachment "job-script" of type "text/plain" (5669 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (4028 bytes)

View attachment "job.yaml" of type "text/plain" (4636 bytes)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ