* BUG: arch/x86/kvm/mmu/mmu.c:3722: kvm_mmu_load+0x407/0x420
@ 2020-05-28 19:29 Naresh Kamboju
2020-05-28 19:38 ` Sean Christopherson
0 siblings, 1 reply; 3+ messages in thread
From: Naresh Kamboju @ 2020-05-28 19:29 UTC (permalink / raw)
To: Paolo Bonzini, kvm list, Sean Christopherson
Cc: eesposit, lkft-triage, open list, Shuah Khan,
open list:KERNEL SELFTEST FRAMEWORK, Anders Roxell,
Andy Lutomirski, Thomas Gleixner, Borislav Petkov,
H. Peter Anvin, Wanpeng Li, Jim Mattson, Vivek Goyal, Gavin Shan,
Peter Zijlstra
While running selftest kvm set_memory_region_test on x86_64 linux-next kernel
5.7.0-rc6-next-20200518 the kernel BUG noticed.
steps to reproduce: (always reproducible )
-------------------------
cd /opt/kselftests/default-in-kernel/kvm
./set_memory_region_test
BAD: next-20200518 (still reproducible on next-20200526)
GOOD: next-20200515
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
kernel config:
http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-corei7-64/lkft/linux-next/777/config
kernel crash log,
-----------------------
[ 33.074161] ------------[ cut here ]------------
[ 33.079845] kernel BUG at /usr/src/kernel/arch/x86/kvm/mmu/mmu.c:3722!
[ 33.086422] invalid opcode: 0000 [#1] SMP PTI
[ 33.090792] CPU: 3 PID: 512 Comm: set_memory_regi Not tainted
5.7.0-rc7-next-20200526 #1
[ 33.100253] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
2.2 05/23/2018
[ 33.107642] RIP: 0010:kvm_mmu_load+0x407/0x420
[ 33.112086] Code: ff e9 42 fc ff ff 48 8b 0d f6 ec 99 01 e9 31 ff
ff ff 48 8b 0d ea ec 99 01 e9 ac fe ff ff 48 8b 0d de ec 99 01 e9 af
fd ff ff <0f> 0b 48 8b 0d d0 ec 99 01 eb 90 0f 1f 40 00 66 2e 0f 1f 84
00 00
[ 33.130829] RSP: 0018:ffffb225803d7d20 EFLAGS: 00010293
[ 33.136047] RAX: ffff936ee4fd8420 RBX: ffff936ee4fd8000 RCX: 0000000000000000
[ 33.143171] RDX: 0000000000000027 RSI: ffffffffacc81b20 RDI: ffff936ee76fb9a8
[ 33.150294] RBP: ffffb225803d7d50 R08: ffff936eefbb66c0 R09: ffff936eec668800
[ 33.157418] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[ 33.164567] R13: 00000000002dc6c0 R14: ffff936ee4fd8000 R15: 0000000000000001
[ 33.171710] FS: 00007fce5aed3740(0000) GS:ffff936eefb80000(0000)
knlGS:0000000000000000
[ 33.179787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 33.185525] CR2: 0000000000fdd298 CR3: 0000000263c74004 CR4: 00000000003626e0
[ 33.192682] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 33.199806] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 33.206930] Call Trace:
[ 33.209377] vcpu_enter_guest+0x10d0/0x17f0
[ 33.213580] ? kvm_load_guest_fpu.isra.131+0x4d/0x140
[ 33.218632] kvm_arch_vcpu_ioctl_run+0x12a/0x650
[ 33.223250] ? kvm_arch_vcpu_ioctl_run+0x12a/0x650
[ 33.228036] kvm_vcpu_ioctl+0x261/0x680
[ 33.231872] ? __audit_syscall_entry+0xdd/0x130
[ 33.236400] ksys_ioctl+0x98/0xb0
[ 33.239715] ? do_syscall_64+0x20/0xa0
[ 33.243461] __x64_sys_ioctl+0x1a/0x20
[ 33.247212] do_syscall_64+0x5a/0xa0
[ 33.250785] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 33.255836] RIP: 0033:0x7fce5a7d18f7
[ 33.259415] Code: b3 66 90 48 8b 05 a1 35 2c 00 64 c7 00 26 00 00
00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00
00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 35 2c 00 f7 d8 64 89
01 48
[ 33.278152] RSP: 002b:00007ffca3313c68 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ 33.285708] RAX: ffffffffffffffda RBX: 0000000000fdd3e0 RCX: 00007fce5a7d18f7
[ 33.292831] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
[ 33.299954] RBP: 0000000000000000 R08: 0000000000409dc3 R09: 0000000000000000
[ 33.307078] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000004018a0
[ 33.314204] R13: 00007ffca3313e80 R14: 00007fce5aed36c0 R15: 0000000000000000
[ 33.321331] Modules linked in: x86_pkg_temp_thermal fuse
[ 33.326672] ---[ end trace 76d29d87896dd85b ]---
[ 33.331308] RIP: 0010:kvm_mmu_load+0x407/0x420
[ 33.335753] Code: ff e9 42 fc ff ff 48 8b 0d f6 ec 99 01 e9 31 ff
ff ff 48 8b 0d ea ec 99 01 e9 ac fe ff ff 48 8b 0d de ec 99 01 e9 af
fd ff ff <0f> 0b 48 8b 0d d0 ec 99 01 eb 90 0f 1f 40 00 66 2e 0f 1f 84
00 00
[ 33.354497] RSP: 0018:ffffb225803d7d20 EFLAGS: 00010293
[ 33.359749] RAX: ffff936ee4fd8420 RBX: ffff936ee4fd8000 RCX: 0000000000000000
[ 33.366882] RDX: 0000000000000027 RSI: ffffffffacc81b20 RDI: ffff936ee76fb9a8
[ 33.374015] RBP: ffffb225803d7d50 R08: ffff936eefbb66c0 R09: ffff936eec668800
[ 33.381145] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[ 33.388278] R13: 00000000002dc6c0 R14: ffff936ee4fd8000 R15: 0000000000000001
[ 33.395412] FS: 00007fce5aed3740(0000) GS:ffff936eefb80000(0000)
knlGS:0000000000000000
[ 33.403496] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 33.409242] CR2: 0000000000fdd298 CR3: 0000000263c74004 CR4: 00000000003626e0
[ 33.416374] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 33.423509] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
t_memory_region_[ 33.431191] general protection fault, probably for
non-canonical address 0xdead000000000100: 0000 [#2] SMP PTI
[ 33.442078] CPU: 1 PID: 512 Comm: set_memory_regi Tainted: G D
5.7.0-rc7-next-20200526 #1
[ 33.451541] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
2.2 05/23/2018
[ 33.458927] RIP: 0010:__schedule+0x48b/0x830
[ 33.463197] Code: 84 be fd ff ff 48 01 83 68 0c 00 00 48 83 83 60
0c 00 00 01 e9 aa fd ff ff 4d 8b bc 24 50 03 00 00 4d 85 ff 0f 84 c3
fd ff ff <49> 8b 47 10 4c 89 ff 4c 89 f6 48 8b 40 08 e8 f2 83 21 00 4d
8b 3f
[ 33.481933] RSP: 0018:ffffb225803d7bf8 EFLAGS: 00010086
[ 33.487151] RAX: 0000000000000000 RBX: ffff936eefaacc00 RCX: 0000000000000002
[ 33.494276] RDX: 0000006500000000 RSI: 0000000000000000 RDI: ffff936ee4fd8000
[ 33.501398] RBP: ffffb225803d7c50 R08: 0000000000000000 R09: 0000000000000001
[ 33.508523] R10: ffffb225803d7b80 R11: 0000000000000197 R12: ffff936ee76fb100
[ 33.515646] R13: ffff936eefaacc18 R14: ffff936eee1d1880 R15: dead000000000100
[ 33.522771] FS: 00007fce5aed3740(0000) GS:ffff936eefa80000(0000)
knlGS:0000000000000000
[ 33.530848] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 33.536586] CR2: 000055c5745b6280 CR3: 0000000207c10006 CR4: 00000000003626e0
[ 33.543710] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 33.550832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 33.557957] Call Trace:
[ 33.560406] preempt_schedule_common+0x15/0x30
[ 33.564849] _cond_resched+0x22/0x30
[ 33.568426] wait_for_completion+0x42/0x120
[ 33.572605] __synchronize_srcu+0xef/0x180
[ 33.576704] ? __bpf_trace_rcu_invoke_callback+0x10/0x10
[ 33.582017] synchronize_srcu+0x66/0x110
[ 33.585941] ? synchronize_srcu+0x66/0x110
[ 33.590031] kvm_page_track_unregister_notifier+0x4f/0x60
[ 33.595423] kvm_mmu_uninit_vm+0x15/0x20
[ 33.599340] kvm_arch_destroy_vm+0x1ab/0x210
[ 33.603604] kvm_put_kvm+0x1c6/0x3d0
[ 33.607176] kvm_vm_release+0x21/0x30
[ 33.610840] __fput+0x109/0x270
[ 33.613979] ____fput+0xe/0x10
[ 33.617037] task_work_run+0x6f/0xc0
[ 33.620609] do_exit+0x3ec/0xd10
[ 33.623842] rewind_stack_do_exit+0x17/0x17
[ 33.628024] RIP: 0033:0x7fce5a7d18f7
[ 33.631597] Code: Bad RIP value.
[ 33.634821] RSP: 002b:00007ffca3313c68 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ 33.642387] RAX: ffffffffffffffda RBX: 0000000000fdd3e0 RCX: 00007fce5a7d18f7
[ 33.649511] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
[ 33.656634] RBP: 0000000000000000 R08: 0000000000409dc3 R09: 0000000000000000
[ 33.663757] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000004018a0
[ 33.670882] R13: 00007ffca3313e80 R14: 00007fce5aed36c0 R15: 0000000000000000
[ 33.678007] Modules linked in: x86_pkg_temp_thermal fuse
[ 33.683320] ---[ end trace 76d29d87896dd85c ]---
[ 33.687937] RIP: 0010:kvm_mmu_load+0x407/0x420
[ 33.692373] Code: ff e9 42 fc ff ff 48 8b 0d f6 ec 99 01 e9 31 ff
ff ff 48 8b 0d ea ec 99 01 e9 ac fe ff ff 48 8b 0d de ec 99 01 e9 af
fd ff ff <0f> 0b 48 8b 0d d0 ec 99 01 eb 90 0f 1f 40 00 66 2e 0f 1f 84
00 00
[ 33.711111] RSP: 0018:ffffb225803d7d20 EFLAGS: 00010293
[ 33.716329] RAX: ffff936ee4fd8420 RBX: ffff936ee4fd8000 RCX: 0000000000000000
[ 33.723452] RDX: 0000000000000027 RSI: ffffffffacc81b20 RDI: ffff936ee76fb9a8
[ 33.730576] RBP: ffffb225803d7d50 R08: ffff936eefbb66c0 R09: ffff936eec668800
[ 33.737699] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[ 33.744823] R13: 00000000002dc6c0 R14: ffff936ee4fd8000 R15: 0000000000000001
[ 33.751948] FS: 00007fce5aed3740(0000) GS:ffff936eefa80000(0000)
knlGS:0000000000000000
[ 33.760024] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 33.765760] CR2: 00007fce5a7d18cd CR3: 0000000207c10006 CR4: 00000000003626e0
[ 33.772885] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 33.780009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 33.787132] note: set_memory_regi[512] exited with preempt_count 2
[ 33.793304] Fixing recursive fault but reboot is needed!
Test job link,
https://lkft.validation.linaro.org/scheduler/job/1455528#L1230
--
Linaro LKFT
https://lkft.linaro.org
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: BUG: arch/x86/kvm/mmu/mmu.c:3722: kvm_mmu_load+0x407/0x420
2020-05-28 19:29 BUG: arch/x86/kvm/mmu/mmu.c:3722: kvm_mmu_load+0x407/0x420 Naresh Kamboju
@ 2020-05-28 19:38 ` Sean Christopherson
2020-05-28 19:51 ` Naresh Kamboju
0 siblings, 1 reply; 3+ messages in thread
From: Sean Christopherson @ 2020-05-28 19:38 UTC (permalink / raw)
To: Naresh Kamboju
Cc: Paolo Bonzini, kvm list, eesposit, lkft-triage, open list,
Shuah Khan, open list:KERNEL SELFTEST FRAMEWORK, Anders Roxell,
Andy Lutomirski, Thomas Gleixner, Borislav Petkov,
H. Peter Anvin, Wanpeng Li, Jim Mattson, Vivek Goyal, Gavin Shan,
Peter Zijlstra
On Fri, May 29, 2020 at 12:59:40AM +0530, Naresh Kamboju wrote:
> While running selftest kvm set_memory_region_test on x86_64 linux-next kernel
> 5.7.0-rc6-next-20200518 the kernel BUG noticed.
>
> steps to reproduce: (always reproducible )
> -------------------------
> cd /opt/kselftests/default-in-kernel/kvm
> ./set_memory_region_test
>
> BAD: next-20200518 (still reproducible on next-20200526)
> GOOD: next-20200515
> git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> kernel config:
> http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-corei7-64/lkft/linux-next/777/config
>
> kernel crash log,
> -----------------------
> [ 33.074161] ------------[ cut here ]------------
> [ 33.079845] kernel BUG at /usr/src/kernel/arch/x86/kvm/mmu/mmu.c:3722!
I'm 99% certain this is already fixed[*], I'll double check to confirm.
[*] https://lkml.kernel.org/r/20200527085400.23759-1-sean.j.christopherson@intel.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: BUG: arch/x86/kvm/mmu/mmu.c:3722: kvm_mmu_load+0x407/0x420
2020-05-28 19:38 ` Sean Christopherson
@ 2020-05-28 19:51 ` Naresh Kamboju
0 siblings, 0 replies; 3+ messages in thread
From: Naresh Kamboju @ 2020-05-28 19:51 UTC (permalink / raw)
To: Sean Christopherson
Cc: Paolo Bonzini, kvm list, eesposit, lkft-triage, open list,
Shuah Khan, open list:KERNEL SELFTEST FRAMEWORK, Anders Roxell,
Andy Lutomirski, Thomas Gleixner, Borislav Petkov,
H. Peter Anvin, Wanpeng Li, Jim Mattson, Vivek Goyal, Gavin Shan,
Peter Zijlstra
On Fri, 29 May 2020 at 01:08, Sean Christopherson
<sean.j.christopherson@intel.com> wrote:
>
> On Fri, May 29, 2020 at 12:59:40AM +0530, Naresh Kamboju wrote:
> > While running selftest kvm set_memory_region_test on x86_64 linux-next kernel
> > 5.7.0-rc6-next-20200518 the kernel BUG noticed.
> >
> > steps to reproduce: (always reproducible )
> > -------------------------
> > cd /opt/kselftests/default-in-kernel/kvm
> > ./set_memory_region_test
> >
> > BAD: next-20200518 (still reproducible on next-20200526)
> > GOOD: next-20200515
> > git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> > kernel config:
> > http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-corei7-64/lkft/linux-next/777/config
> >
> > kernel crash log,
> > -----------------------
> > [ 33.074161] ------------[ cut here ]------------
> > [ 33.079845] kernel BUG at /usr/src/kernel/arch/x86/kvm/mmu/mmu.c:3722!
>
> I'm 99% certain this is already fixed[*], I'll double check to confirm.
Thanks for looking into this problem.
> [*] https://lkml.kernel.org/r/20200527085400.23759-1-sean.j.christopherson@intel.com
I see you made a recent fix (on Wed, 27 May 2020).
Let this patch get into the linux-next tree master and our build system
will pull it and test it. I will report back once it is fixed.
- Naresh
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-05-28 19:29 BUG: arch/x86/kvm/mmu/mmu.c:3722: kvm_mmu_load+0x407/0x420 Naresh Kamboju
2020-05-28 19:38 ` Sean Christopherson
2020-05-28 19:51 ` Naresh Kamboju
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