Re: [PATCH] cifs: Set the file size after doing copychunk_range

From: kernel test robot
Date: Wed Nov 29 2023 - 20:40:16 EST

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In reply to: David Howells: "Re: [PATCH] cifs: Set the file size after doing copychunk_range"
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Hello,

kernel test robot noticed "kernel_BUG_at_include/linux/highmem.h" on:

commit: 7ea84f5cb7518fa39de48aadafa14f129e9463c5 ("[PATCH] cifs: Set the file size after doing copychunk_range")
url: https://github.com/intel-lab-lkp/linux/commits/David-Howells/cifs-Set-the-file-size-after-doing-copychunk_range/20231125-055345
base: git://git.samba.org/sfrench/cifs-2.6.git for-next
patch link: https://lore.kernel.org/all/1297339.1700862676@xxxxxxxxxxxxxxxxxxxxxx/
patch subject: [PATCH] cifs: Set the file size after doing copychunk_range

in testcase: xfstests
version: xfstests-x86_64-11914614-1_20231122
with following parameters:

disk: 4HDD
fs: ext4
fs2: smbv2
test: generic-group-11

compiler: gcc-12
test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory

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

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/202311292134.366c9c0b-oliver.sang@xxxxxxxxx

[ 207.421597][ T2704] ------------[ cut here ]------------
[ 207.427162][ T2704] kernel BUG at include/linux/highmem.h:275!
[ 207.433050][ T2704] invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
[ 207.439375][ T2704] CPU: 3 PID: 2704 Comm: fsx Tainted: G S 6.7.0-rc2-00006-g7ea84f5cb751 #1
[ 207.449260][ T2704] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, BIOS 1.8.1 12/05/2017
[ 207.457394][ T2704] RIP: 0010:zero_user_segments (include/linux/mm.h:2069 include/linux/highmem.h:284)
[ 207.464138][ T2704] Code: 41 5e 41 5f c3 48 89 df 89 ea 31 f6 4c 29 f7 44 29 e2 48 c1 ff 06 48 c1 e7 0c 4c 01 ef 4c 01 e7 e8 4f 7e 08 02 e9 5a ff ff ff <0f> 0b 48 89 df e8 60 13 1a 00 eb 91 4c 89 ef e8 36 13 1a 00 eb ae
All code
========
0: 41 5e pop %r14
2: 41 5f pop %r15
4: c3 retq
5: 48 89 df mov %rbx,%rdi
8: 89 ea mov %ebp,%edx
a: 31 f6 xor %esi,%esi
c: 4c 29 f7 sub %r14,%rdi
f: 44 29 e2 sub %r12d,%edx
12: 48 c1 ff 06 sar $0x6,%rdi
16: 48 c1 e7 0c shl $0xc,%rdi
1a: 4c 01 ef add %r13,%rdi
1d: 4c 01 e7 add %r12,%rdi
20: e8 4f 7e 08 02 callq 0x2087e74
25: e9 5a ff ff ff jmpq 0xffffffffffffff84
2a:* 0f 0b ud2 <-- trapping instruction
2c: 48 89 df mov %rbx,%rdi
2f: e8 60 13 1a 00 callq 0x1a1394
34: eb 91 jmp 0xffffffffffffffc7
36: 4c 89 ef mov %r13,%rdi
39: e8 36 13 1a 00 callq 0x1a1374
3e: eb ae jmp 0xffffffffffffffee

Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 48 89 df mov %rbx,%rdi
5: e8 60 13 1a 00 callq 0x1a136a
a: eb 91 jmp 0xffffffffffffff9d
c: 4c 89 ef mov %r13,%rdi
f: e8 36 13 1a 00 callq 0x1a134a
14: eb ae jmp 0xffffffffffffffc4
[ 207.483716][ T2704] RSP: 0018:ffffc90008f6f9d0 EFLAGS: 00010297
[ 207.489673][ T2704] RAX: 0000000000001000 RBX: ffffea0004b3fac0 RCX: ffffffff817f36f2
[ 207.497547][ T2704] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0004b3fac0
[ 207.505421][ T2704] RBP: 00000000fffe35b2 R08: 0000000000000000 R09: fffff94000967f58
[ 207.513295][ T2704] R10: ffffea0004b3fac7 R11: 0000000000000230 R12: 00000000000007f6
[ 207.521168][ T2704] R13: ffff888000000000 R14: ffffea0000000000 R15: 00000000fffe35b2
[ 207.529042][ T2704] FS: 00007f21a955d740(0000) GS:ffff88879c380000(0000) knlGS:0000000000000000
[ 207.537887][ T2704] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 207.544376][ T2704] CR2: 00007f21a94bf000 CR3: 000000012e1f2002 CR4: 00000000003706f0
[ 207.552250][ T2704] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 207.560125][ T2704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 207.568001][ T2704] Call Trace:
[ 207.571162][ T2704] <TASK>
[ 207.573971][ T2704] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447)
[ 207.577572][ T2704] ? do_trap (arch/x86/kernel/traps.c:112 arch/x86/kernel/traps.c:153)
[ 207.581695][ T2704] ? zero_user_segments (include/linux/mm.h:2069 include/linux/highmem.h:284)
[ 207.587832][ T2704] ? do_error_trap (arch/x86/include/asm/traps.h:59 arch/x86/kernel/traps.c:174)
[ 207.592317][ T2704] ? zero_user_segments (include/linux/mm.h:2069 include/linux/highmem.h:284)
[ 207.598445][ T2704] ? handle_invalid_op (arch/x86/kernel/traps.c:212)
[ 207.603265][ T2704] ? zero_user_segments (include/linux/mm.h:2069 include/linux/highmem.h:284)
[ 207.609394][ T2704] ? exc_invalid_op (arch/x86/kernel/traps.c:265)
[ 207.613953][ T2704] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:568)
[ 207.618875][ T2704] ? zero_user_segments (include/linux/instrumented.h:68 include/asm-generic/bitops/instrumented-non-atomic.h:141 include/linux/mm.h:1063 include/linux/mm.h:1300 include/linux/highmem.h:275)
[ 207.624919][ T2704] ? zero_user_segments (include/linux/mm.h:2069 include/linux/highmem.h:284)
[ 207.631050][ T2704] ? folio_wait_writeback (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/page-flags.h:513 mm/page-writeback.c:3063)
[ 207.636219][ T2704] truncate_inode_partial_folio (include/linux/page-flags.h:1113 include/linux/page-flags.h:1118 mm/truncate.c:238)
[ 207.642001][ T2704] truncate_inode_pages_range (mm/truncate.c:379)
[ 207.647609][ T2704] ? truncate_inode_partial_folio (mm/truncate.c:331)
[ 207.653570][ T2704] ? _raw_spin_lock (arch/x86/include/asm/atomic.h:115 include/linux/atomic/atomic-arch-fallback.h:2164 include/linux/atomic/atomic-instrumented.h:1296 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
[ 207.658139][ T2704] ? filemap_check_errors (arch/x86/include/asm/bitops.h:206 (discriminator 6) arch/x86/include/asm/bitops.h:238 (discriminator 6) include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 6) mm/filemap.c:350 (discriminator 6))
[ 207.663229][ T2704] cifs_file_copychunk_range (fs/smb/client/cifsfs.c:1312) cifs
[ 207.669432][ T2704] cifs_copy_file_range (fs/smb/client/cifsfs.c:1365) cifs
[ 207.675110][ T2704] vfs_copy_file_range (fs/read_write.c:1509)
[ 207.680199][ T2704] ? generic_file_rw_checks (fs/read_write.c:1478)
[ 207.685630][ T2704] ? kernel_write (fs/read_write.c:565)
[ 207.690186][ T2704] ? preempt_notifier_dec (kernel/sched/core.c:10106)
[ 207.695268][ T2704] ? smb3_llseek (fs/smb/client/smb2ops.c:3770) cifs
[ 207.700419][ T2704] __do_sys_copy_file_range (fs/read_write.c:1595)
[ 207.705863][ T2704] ? vfs_copy_file_range (fs/read_write.c:1561)
[ 207.711206][ T2704] ? ksys_write (fs/read_write.c:637)
[ 207.715499][ T2704] ? __ia32_sys_read (fs/read_write.c:627)
[ 207.720145][ T2704] ? fpregs_restore_userregs (arch/x86/include/asm/bitops.h:75 include/asm-generic/bitops/instrumented-atomic.h:42 include/linux/thread_info.h:94 arch/x86/kernel/fpu/context.h:79)
[ 207.725576][ T2704] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:82)
[ 207.729885][ T2704] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 207.735664][ T2704] RIP: 0033:0x7f21a9654f29
[ 207.739958][ T2704] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 37 8f 0d 00 f7 d8 64 89 01 48
All code
========
0: 00 c3 add %al,%bl
2: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
9: 00 00 00
c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
11: 48 89 f8 mov %rdi,%rax
14: 48 89 f7 mov %rsi,%rdi
17: 48 89 d6 mov %rdx,%rsi
1a: 48 89 ca mov %rcx,%rdx
1d: 4d 89 c2 mov %r8,%r10
20: 4d 89 c8 mov %r9,%r8
23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9
28: 0f 05 syscall
2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction
30: 73 01 jae 0x33
32: c3 retq
33: 48 8b 0d 37 8f 0d 00 mov 0xd8f37(%rip),%rcx # 0xd8f71
3a: f7 d8 neg %eax
3c: 64 89 01 mov %eax,%fs:(%rcx)
3f: 48 rex.W

Code starting with the faulting instruction
===========================================
0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax
6: 73 01 jae 0x9
8: c3 retq
9: 48 8b 0d 37 8f 0d 00 mov 0xd8f37(%rip),%rcx # 0xd8f47
10: f7 d8 neg %eax
12: 64 89 01 mov %eax,%fs:(%rcx)
15: 48 rex.W

The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231129/202311292134.366c9c0b-oliver.sang@xxxxxxxxx

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

Next message: Baoquan He: "Re: [PATCH] kexec: drop dependency on ARCH_SUPPORTS_KEXEC from CRASH_DUMP"
Previous message: Sean Christopherson: "Re: [PATCH 10/14] KVM: x86: Make Hyper-V emulation optional"
In reply to: David Howells: "Re: [PATCH] cifs: Set the file size after doing copychunk_range"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]