Hello,
for this commit but in linux-next/fs-next branch, we notice crash issue in
vm/booting tests
kernel test robot noticed "Oops:general_protection_fault,probably_for_non-canonical_address#:#[##]PREEMPT_SMP_KASAN_PTI" on:
commit: 0eccf222d798166ce42a4ed0da91a0cb14945c7a ("fs: port files to file_ref")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git fs-next
in testcase: boot
config: x86_64-rhel-8.3-kselftests
compiler: gcc-12
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+----------------------------------------------------------------------------------------------+------------+------------+
| | 08ef26ea9a | 0eccf222d7 |
+----------------------------------------------------------------------------------------------+------------+------------+
| boot_successes | 18 | 0 |
| boot_failures | 0 | 18 |
| Oops:general_protection_fault,probably_for_non-canonical_address#:#[##]PREEMPT_SMP_KASAN_PTI | 0 | 18 |
| KASAN:null-ptr-deref_in_range[#-#] | 0 | 18 |
| RIP:hook_file_free_security | 0 | 18 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 18 |
+----------------------------------------------------------------------------------------------+------------+------------+
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/202410301313.50e4d05c-oliver.sang@xxxxxxxxx
[ 3.605271][ T1] pci_bus 0000:00: resource 8 [mem 0x440000000-0x4bfffffff window]
[ 3.608369][ T1] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[ 3.609815][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 3.611533][ T1] PCI: CLS 0 bytes, default 64
[ 3.615146][ T30] Trying to unpack rootfs image as initramfs...
[ 3.622946][ T9] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
[ 3.623645][ T9] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
[ 3.623645][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.12.0-rc2-00003-g0eccf222d798 #1
[ 3.623645][ T9] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 3.623645][ T9] Workqueue: events delayed_fput
[ 3.623645][ T9] RIP: 0010:hook_file_free_security (kbuild/src/consumer/security/landlock/fs.c:1662)
[ 3.623645][ T9] Code: b6 14 11 38 d0 7c 04 84 d2 75 2f 48 63 05 21 1f ae 02 48 01 c3 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 1f 48 8b 7b 08 5b e9 25 d1 ff ff 48 c7 c7 e4 0c a1
All code
========
0: b6 14 mov $0x14,%dh
2: 11 38 adc %edi,(%rax)
4: d0 7c 04 84 sarb -0x7c(%rsp,%rax,1)
8: d2 75 2f shlb %cl,0x2f(%rbp)
b: 48 63 05 21 1f ae 02 movslq 0x2ae1f21(%rip),%rax # 0x2ae1f33
12: 48 01 c3 add %rax,%rbx
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 8d 7b 08 lea 0x8(%rbx),%rdi
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
2a:* 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 75 1f jne 0x4f
30: 48 8b 7b 08 mov 0x8(%rbx),%rdi
34: 5b pop %rbx
35: e9 25 d1 ff ff jmpq 0xffffffffffffd15f
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: c7 (bad)
3d: e4 0c in $0xc,%al
3f: a1 .byte 0xa1
Code starting with the faulting instruction
===========================================
0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
4: 75 1f jne 0x25
6: 48 8b 7b 08 mov 0x8(%rbx),%rdi
a: 5b pop %rbx
b: e9 25 d1 ff ff jmpq 0xffffffffffffd135
10: 48 rex.W
11: c7 .byte 0xc7
12: c7 (bad)
13: e4 0c in $0xc,%al
15: a1 .byte 0xa1
[ 3.623645][ T9] RSP: 0000:ffffc9000009fc38 EFLAGS: 00010202
[ 3.623645][ T9] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff414219c
[ 3.623645][ T9] RDX: 0000000000000001 RSI: ffffffffa11601e0 RDI: 0000000000000008
[ 3.623645][ T9] RBP: ffff888100438bf8 R08: ffffffff9d900c82 R09: fffffbfff4398cdc
[ 3.623645][ T9] R10: ffffffffa1cc66e7 R11: ffffffffa30a4960 R12: 0000000000000000
[ 3.623645][ T9] R13: ffff88810627a240 R14: ffff88810627a228 R15: ffff88810627a1c0
[ 3.623645][ T9] FS: 0000000000000000(0000) GS:ffff8883aee00000(0000) knlGS:0000000000000000
[ 3.623645][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.623645][ T9] CR2: ffff88843ffff000 CR3: 000000021e27e000 CR4: 00000000000406f0
[ 3.623645][ T9] Call Trace:
[ 3.623645][ T9] <TASK>
[ 3.623645][ T9] ? die_addr (kbuild/src/consumer/arch/x86/kernel/dumpstack.c:421 kbuild/src/consumer/arch/x86/kernel/dumpstack.c:460)
[ 3.623645][ T9] ? exc_general_protection (kbuild/src/consumer/arch/x86/kernel/traps.c:751 kbuild/src/consumer/arch/x86/kernel/traps.c:693)
[ 3.623645][ T9] ? asm_exc_general_protection (kbuild/src/consumer/arch/x86/include/asm/idtentry.h:617)
[ 3.623645][ T9] ? mntput_no_expire (kbuild/src/consumer/include/linux/rcupdate.h:347 kbuild/src/consumer/include/linux/rcupdate.h:880 kbuild/src/consumer/fs/namespace.c:1411)
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241030/202410301313.50e4d05c-oliver.sang@xxxxxxxxx
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
