Re: 5.4-rc1 boot regression with kmemleak enabled

[Amir Goldstein <amir73il@gmail.com>]

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On Tue, Nov 5, 2019 at 5:31 PM Catalin Marinas <catalin.marinas@arm.com> wrote:
>
> On Tue, Nov 05, 2019 at 02:33:48PM +0200, Amir Goldstein wrote:
> > On Tue, Nov 5, 2019 at 1:54 PM Catalin Marinas <catalin.marinas@arm.com> wrote:
> > > (sorry if you got this message twice; our SMTP server went bust)
> > >
> > > On Tue, Nov 05, 2019 at 09:14:06AM +0200, Amir Goldstein wrote:
> > > > My kvm-xfstests [1] VM doesn't boot with kmemleak enabled since commit
> > > > c5665868183f ("mm: kmemleak: use the memory pool for early allocations").
> > > >
> > > > There is no console output when running:
> > > >
> > > > $ kvm -boot order=c -net none -machine type=pc,accel=kvm:tcg -cpu host \
> > > >     -drive file=$ROOTFS,if=virtio,snapshot=on -vga none -nographic \
> > > >     -smp 2 -m 2048 -serial mon:stdio --kernel $KERNEL \
> > > >     --append 'root=/dev/vda console=ttyS0,115200'
> > >
> > > This was fixed in 5.4-rc4, see commit 2abd839aa7e6 ("kmemleak: Do not
> > > corrupt the object_list during clean-up").
> >
> > Did not fix my issue.
> > Still not booting with 5.4-rc6.
> > Any other suggestions?
>
> Can you pass an earlyprintk=ttyS0,115200 (if that's the correct x86
> syntax) on the kernel command line? It may print some early messages
> that would help with debugging.
>

Attached.

Thanks,
Amir.

[-- Attachment #2: kmemleak-earlyboot-5.4.0-rc6.log --]
[-- Type: text/x-log, Size: 46003 bytes --]

early console in extract_kernel
input_data: 0x00000000037c02e9
input_len: 0x0000000000840a6d
output: 0x0000000001000000
output_len: 0x0000000002070910
kernel_total_size: 0x0000000003026000
needed_size: 0x0000000003200000
trampoline_32bit: 0x000000000009d000

Decompressing Linux... Parsing ELF... done.
Booting the kernel.
[    0.000000] Linux version 5.4.0-rc6-xfstests (amir@amir-VirtualBox) (gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1)) #4302 SMP Tue Nov 5 08:52:22 IST 2019
[    0.000000] Command line: root=/dev/vda console=ttyS0,115200 earlyprintk=ttyS0,115200
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffddfff] usable
[    0.000000] BIOS-e820: [mem 0x000000007ffde000-0x000000007fffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000] printk: bootconsole [earlyser0] enabled
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] SMBIOS 2.8 present.
[    0.000000] DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.000000] Hypervisor detected: KVM
[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000000] kvm-clock: cpu 0, msr 2c8a001, primary cpu clock
[    0.000000] kvm-clock: using sched offset of 190836459 cycles
[    0.000723] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.002847] tsc: Detected 2294.682 MHz processor
[    0.003869] last_pfn = 0x7ffde max_arch_pfn = 0x400000000
[    0.004618] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
[    0.010252] found SMP MP-table at [mem 0x000f6a80-0x000f6a8f]
[    0.011096] check: Scanning 1 areas for low memory corruption
[    0.011852] Using GB pages for direct mapping
[    0.012769] ACPI: Early table checksum verification disabled
[    0.013501] ACPI: RSDP 0x00000000000F6860 000014 (v00 BOCHS )
[    0.014248] ACPI: RSDT 0x000000007FFE1662 000030 (v01 BOCHS  BXPCRSDT 00000001 BXPC 00000001)
[    0.015388] ACPI: FACP 0x000000007FFE14B6 000074 (v01 BOCHS  BXPCFACP 00000001 BXPC 00000001)
[    0.016567] ACPI: DSDT 0x000000007FFE0040 001476 (v01 BOCHS  BXPCDSDT 00000001 BXPC 00000001)
[    0.017728] ACPI: FACS 0x000000007FFE0000 000040
[    0.018327] ACPI: APIC 0x000000007FFE15AA 000080 (v01 BOCHS  BXPCAPIC 00000001 BXPC 00000001)
[    0.019468] ACPI: HPET 0x000000007FFE162A 000038 (v01 BOCHS  BXPCHPET 00000001 BXPC 00000001)
[    0.020658] No NUMA configuration found
[    0.021156] Faking a node at [mem 0x0000000000000000-0x000000007ffddfff]
[    0.022024] NODE_DATA(0) allocated [mem 0x7ffda000-0x7ffddfff]
[    0.022796] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.023682] #PF: supervisor read access in kernel mode
[    0.024341] #PF: error_code(0x0000) - not-present page
[    0.025000] PGD 0 P4D 0 
[    0.025326] Oops: 0000 [#1] SMP PTI
[    0.025775] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.026683] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.027836] RIP: 0010:get_stack_info+0xa7/0x146
[    0.028418] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.030843] RSP: 0000:ffffffff82403bf0 EFLAGS: 00010006
[    0.031512] RAX: 0000000000002000 RBX: ffffffff82403c90 RCX: 0000000000001000
[    0.032450] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001008
[    0.033360] RBP: 0000000000001008 R08: ffffffff82404000 R09: 0000000000000002
[    0.034273] R10: ffffffff82419800 R11: 000000000000000c R12: ffffffff82419800
[    0.035187] R13: ffffffff82403cb0 R14: ffffffff82403d20 R15: 0000000000001008
[    0.036094] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.037127] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.037923] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.038859] Call Trace:
[    0.039176] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.040060] #PF: supervisor read access in kernel mode
[    0.040719] #PF: error_code(0x0000) - not-present page
[    0.041378] PGD 0 P4D 0 
[    0.041705] Oops: 0000 [#2] SMP PTI
[    0.042153] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.043079] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.044280] RIP: 0010:get_stack_info+0xa7/0x146
[    0.044858] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.047280] RSP: 0000:ffffffff82403920 EFLAGS: 00010006
[    0.047948] RAX: 0000000000002000 RBX: ffffffff82403a10 RCX: 0000000000001000
[    0.048864] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001010
[    0.049780] RBP: 0000000000001010 R08: ffffffff82404000 R09: 0000000000000001
[    0.050712] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.051626] R13: ffffffff82403a30 R14: ffffffff82403bf0 R15: 0000000000001010
[    0.052540] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.053577] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.054316] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.055265] Call Trace:
[    0.055579] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.056462] #PF: supervisor read access in kernel mode
[    0.057118] #PF: error_code(0x0000) - not-present page
[    0.057778] PGD 0 P4D 0 
[    0.058104] Oops: 0000 [#3] SMP PTI
[    0.058616] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.059520] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.060668] RIP: 0010:get_stack_info+0xa7/0x146
[    0.061276] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.063722] RSP: 0000:ffffffff82403650 EFLAGS: 00010006
[    0.064392] RAX: 0000000000002000 RBX: ffffffff82403740 RCX: 0000000000001000
[    0.065308] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001018
[    0.066249] RBP: 0000000000001018 R08: ffffffff82404000 R09: 0000000000000001
[    0.067278] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.068195] R13: ffffffff82403760 R14: ffffffff82403920 R15: 0000000000001018
[    0.069112] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.070142] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.070923] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.071841] Call Trace:
[    0.072158] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.073036] #PF: supervisor read access in kernel mode
[    0.073692] #PF: error_code(0x0000) - not-present page
[    0.074349] PGD 0 P4D 0 
[    0.074688] Oops: 0000 [#4] SMP PTI
[    0.075135] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.076042] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.077200] RIP: 0010:get_stack_info+0xa7/0x146
[    0.077784] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.080208] RSP: 0000:ffffffff82403380 EFLAGS: 00010006
[    0.080876] RAX: 0000000000002000 RBX: ffffffff82403470 RCX: 0000000000001000
[    0.081789] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001020
[    0.082715] RBP: 0000000000001020 R08: ffffffff82404000 R09: 0000000000000001
[    0.083634] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.084544] R13: ffffffff82403490 R14: ffffffff82403650 R15: 0000000000001020
[    0.085448] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.086504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.087411] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.088351] Call Trace:
[    0.088668] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.089544] #PF: supervisor read access in kernel mode
[    0.090238] #PF: error_code(0x0000) - not-present page
[    0.090937] PGD 0 P4D 0 
[    0.091263] Oops: 0000 [#5] SMP PTI
[    0.091709] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.092615] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.093767] RIP: 0010:get_stack_info+0xa7/0x146
[    0.094349] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.096929] RSP: 0000:ffffffff824030b0 EFLAGS: 00010006
[    0.097645] RAX: 0000000000002000 RBX: ffffffff824031a0 RCX: 0000000000001000
[    0.098605] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001028
[    0.099523] RBP: 0000000000001028 R08: ffffffff82404000 R09: 0000000000000001
[    0.100438] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.101386] R13: ffffffff824031c0 R14: ffffffff82403380 R15: 0000000000001028
[    0.102299] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.103395] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.104133] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.105055] Call Trace:
[    0.105373] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.106256] #PF: supervisor read access in kernel mode
[    0.106965] #PF: error_code(0x0000) - not-present page
[    0.107621] PGD 0 P4D 0 
[    0.107947] Oops: 0000 [#6] SMP PTI
[    0.108395] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.109300] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.110468] RIP: 0010:get_stack_info+0xa7/0x146
[    0.111074] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.113498] RSP: 0000:ffffffff82402de0 EFLAGS: 00010006
[    0.114172] RAX: 0000000000002000 RBX: ffffffff82402ed0 RCX: 0000000000001000
[    0.115117] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001030
[    0.116159] RBP: 0000000000001030 R08: ffffffff82404000 R09: 0000000000000001
[    0.117067] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.117977] R13: ffffffff82402ef0 R14: ffffffff824030b0 R15: 0000000000001030
[    0.118933] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.120007] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.120746] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.121661] Call Trace:
[    0.121978] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.122918] #PF: supervisor read access in kernel mode
[    0.123589] #PF: error_code(0x0000) - not-present page
[    0.124248] PGD 0 P4D 0 
[    0.124606] Oops: 0000 [#7] SMP PTI
[    0.125055] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.125954] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.127155] RIP: 0010:get_stack_info+0xa7/0x146
[    0.127807] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.130213] RSP: 0000:ffffffff82402b10 EFLAGS: 00010006
[    0.130918] RAX: 0000000000002000 RBX: ffffffff82402c00 RCX: 0000000000001000
[    0.131828] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001038
[    0.132735] RBP: 0000000000001038 R08: ffffffff82404000 R09: 0000000000000001
[    0.133645] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.134579] R13: ffffffff82402c20 R14: ffffffff82402de0 R15: 0000000000001038
[    0.135490] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.136557] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.137299] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.138217] Call Trace:
[    0.138564] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.139445] #PF: supervisor read access in kernel mode
[    0.140135] #PF: error_code(0x0000) - not-present page
[    0.140797] PGD 0 P4D 0 
[    0.141124] Oops: 0000 [#8] SMP PTI
[    0.141574] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.142477] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.143628] RIP: 0010:get_stack_info+0xa7/0x146
[    0.144208] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.146681] RSP: 0000:ffffffff82402840 EFLAGS: 00010006
[    0.147349] RAX: 0000000000002000 RBX: ffffffff82402930 RCX: 0000000000001000
[    0.148300] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001040
[    0.149209] RBP: 0000000000001040 R08: ffffffff82404000 R09: 0000000000000001
[    0.150113] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.151034] R13: ffffffff82402950 R14: ffffffff82402b10 R15: 0000000000001040
[    0.151939] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.152981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.153713] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.154638] Call Trace:
[    0.154953] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.155838] #PF: supervisor read access in kernel mode
[    0.156498] #PF: error_code(0x0000) - not-present page
[    0.157173] PGD 0 P4D 0 
[    0.157551] Oops: 0000 [#9] SMP PTI
[    0.158001] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.158919] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.160101] RIP: 0010:get_stack_info+0xa7/0x146
[    0.160681] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.163060] RSP: 0000:ffffffff82402570 EFLAGS: 00010006
[    0.163731] RAX: 0000000000002000 RBX: ffffffff82402660 RCX: 0000000000001000
[    0.164635] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001048
[    0.165536] RBP: 0000000000001048 R08: ffffffff82404000 R09: 0000000000000001
[    0.166443] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.167359] R13: ffffffff82402680 R14: ffffffff82402840 R15: 0000000000001048
[    0.168264] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.169290] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.170039] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.170965] Call Trace:
[    0.171323] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.172226] #PF: supervisor read access in kernel mode
[    0.172927] #PF: error_code(0x0000) - not-present page
[    0.173576] PGD 0 P4D 0 
[    0.173898] Oops: 0000 [#10] SMP PTI
[    0.174353] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.175288] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.176431] RIP: 0010:get_stack_info+0xa7/0x146
[    0.177046] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.179458] RSP: 0000:ffffffff824022a0 EFLAGS: 00010006
[    0.180122] RAX: 0000000000002000 RBX: ffffffff82402390 RCX: 0000000000001000
[    0.181033] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001050
[    0.181936] RBP: 0000000000001050 R08: ffffffff82404000 R09: 0000000000000001
[    0.182921] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.183832] R13: ffffffff824023b0 R14: ffffffff82402570 R15: 0000000000001050
[    0.184749] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.185779] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.186561] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.187580] Call Trace:
[    0.187923] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.188801] #PF: supervisor read access in kernel mode
[    0.189457] #PF: error_code(0x0000) - not-present page
[    0.190111] PGD 0 P4D 0 
[    0.190436] Oops: 0000 [#11] SMP PTI
[    0.190938] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.191833] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.192972] RIP: 0010:get_stack_info+0xa7/0x146
[    0.193554] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.196147] RSP: 0000:ffffffff82401fd0 EFLAGS: 00010006
[    0.196815] RAX: 0000000000002000 RBX: ffffffff824020c0 RCX: 0000000000001000
[    0.197726] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001058
[    0.198697] RBP: 0000000000001058 R08: ffffffff82404000 R09: 0000000000000001
[    0.199609] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.200520] R13: ffffffff824020e0 R14: ffffffff824022a0 R15: 0000000000001058
[    0.201422] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.202450] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.203221] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.204140] Call Trace:
[    0.204457] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.205333] #PF: supervisor read access in kernel mode
[    0.206022] #PF: error_code(0x0000) - not-present page
[    0.206721] PGD 0 P4D 0 
[    0.207047] Oops: 0000 [#12] SMP PTI
[    0.207505] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.208405] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.209559] RIP: 0010:get_stack_info+0xa7/0x146
[    0.210138] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.212602] RSP: 0000:ffffffff82401d00 EFLAGS: 00010006
[    0.213270] RAX: 0000000000002000 RBX: ffffffff82401df0 RCX: 0000000000001000
[    0.214179] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001060
[    0.215111] RBP: 0000000000001060 R08: ffffffff82404000 R09: 0000000000000001
[    0.216081] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.216998] R13: ffffffff82401e10 R14: ffffffff82401fd0 R15: 0000000000001060
[    0.218001] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.219067] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.219808] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.220725] Call Trace:
[    0.221043] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.221917] #PF: supervisor read access in kernel mode
[    0.222598] #PF: error_code(0x0000) - not-present page
[    0.223254] PGD 0 P4D 0 
[    0.223580] Oops: 0000 [#13] SMP PTI
[    0.224039] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.224943] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.226152] RIP: 0010:get_stack_info+0xa7/0x146
[    0.226763] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.229272] RSP: 0000:ffffffff82401a30 EFLAGS: 00010006
[    0.229944] RAX: 0000000000002000 RBX: ffffffff82401b20 RCX: 0000000000001000
[    0.230943] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001068
[    0.231852] RBP: 0000000000001068 R08: ffffffff82404000 R09: 0000000000000001
[    0.232772] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.233678] R13: ffffffff82401b40 R14: ffffffff82401d00 R15: 0000000000001068
[    0.234629] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.235674] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.236417] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.237340] Call Trace:
[    0.237657] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.238576] #PF: supervisor read access in kernel mode
[    0.239234] #PF: error_code(0x0000) - not-present page
[    0.239891] PGD 0 P4D 0 
[    0.240214] Oops: 0000 [#14] SMP PTI
[    0.240719] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.241620] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.242791] RIP: 0010:get_stack_info+0xa7/0x146
[    0.243372] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.245741] RSP: 0000:ffffffff82401760 EFLAGS: 00010006
[    0.246405] RAX: 0000000000002000 RBX: ffffffff82401850 RCX: 0000000000001000
[    0.247404] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001070
[    0.248320] RBP: 0000000000001070 R08: ffffffff82404000 R09: 0000000000000001
[    0.249225] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.250171] R13: ffffffff82401870 R14: ffffffff82401a30 R15: 0000000000001070
[    0.251119] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.252160] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.252928] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.253838] Call Trace:
[    0.254149] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.255034] #PF: supervisor read access in kernel mode
[    0.255694] #PF: error_code(0x0000) - not-present page
[    0.256345] PGD 0 P4D 0 
[    0.256671] Oops: 0000 [#15] SMP PTI
[    0.257130] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.258035] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.259187] RIP: 0010:get_stack_info+0xa7/0x146
[    0.259764] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.262150] RSP: 0000:ffffffff82401490 EFLAGS: 00010006
[    0.262830] RAX: 0000000000002000 RBX: ffffffff82401580 RCX: 0000000000001000
[    0.263745] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001078
[    0.264676] RBP: 0000000000001078 R08: ffffffff82404000 R09: 0000000000000001
[    0.265587] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.266504] R13: ffffffff824015a0 R14: ffffffff82401760 R15: 0000000000001078
[    0.267420] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.268458] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.269193] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.270108] Call Trace:
[    0.270420] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.271299] #PF: supervisor read access in kernel mode
[    0.271958] #PF: error_code(0x0000) - not-present page
[    0.272616] PGD 0 P4D 0 
[    0.272941] Oops: 0000 [#16] SMP PTI
[    0.273396] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.274287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.275422] RIP: 0010:get_stack_info+0xa7/0x146
[    0.276030] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.278488] RSP: 0000:ffffffff824011c0 EFLAGS: 00010006
[    0.279171] RAX: 0000000000002000 RBX: ffffffff824012b0 RCX: 0000000000001000
[    0.280073] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001080
[    0.281008] RBP: 0000000000001080 R08: ffffffff82404000 R09: 0000000000000001
[    0.281905] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.282823] R13: ffffffff824012d0 R14: ffffffff82401490 R15: 0000000000001080
[    0.283736] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.284771] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.285502] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.286421] Call Trace:
[    0.286741] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.287651] #PF: supervisor read access in kernel mode
[    0.288338] #PF: error_code(0x0000) - not-present page
[    0.289020] PGD 0 P4D 0 
[    0.289341] Oops: 0000 [#17] SMP PTI
[    0.289796] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.290709] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.291860] RIP: 0010:get_stack_info+0xa7/0x146
[    0.292443] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.295181] RSP: 0000:ffffffff82400ef0 EFLAGS: 00010006
[    0.295849] RAX: 0000000000002000 RBX: ffffffff82400fe0 RCX: 0000000000001000
[    0.296760] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001088
[    0.297668] RBP: 0000000000001088 R08: ffffffff82404000 R09: 0000000000000001
[    0.298796] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.299712] R13: ffffffff82401000 R14: ffffffff824011c0 R15: 0000000000001088
[    0.300620] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.301659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.302395] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.303354] Call Trace:
[    0.303672] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.304553] #PF: supervisor read access in kernel mode
[    0.305212] #PF: error_code(0x0000) - not-present page
[    0.305877] PGD 0 P4D 0 
[    0.306202] Oops: 0000 [#18] SMP PTI
[    0.306700] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.307658] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.308808] RIP: 0010:get_stack_info+0xa7/0x146
[    0.309397] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.311887] RSP: 0000:ffffffff82400c20 EFLAGS: 00010006
[    0.312555] RAX: 0000000000002000 RBX: ffffffff82400d10 RCX: 0000000000001000
[    0.313469] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001090
[    0.314373] RBP: 0000000000001090 R08: ffffffff82404000 R09: 0000000000000001
[    0.315327] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.316292] R13: ffffffff82400d30 R14: ffffffff82400ef0 R15: 0000000000001090
[    0.317203] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.318243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.319019] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.319936] Call Trace:
[    0.320253] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.321134] #PF: supervisor read access in kernel mode
[    0.321786] #PF: error_code(0x0000) - not-present page
[    0.322489] PGD 0 P4D 0 
[    0.322815] Oops: 0000 [#19] SMP PTI
[    0.323274] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.324175] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.325323] RIP: 0010:get_stack_info+0xa7/0x146
[    0.325905] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.328311] RSP: 0000:ffffffff82400950 EFLAGS: 00010006
[    0.328981] RAX: 0000000000002000 RBX: ffffffff82400a40 RCX: 0000000000001000
[    0.329890] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001098
[    0.330847] RBP: 0000000000001098 R08: ffffffff82404000 R09: 0000000000000001
[    0.331773] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.332687] R13: ffffffff82400a60 R14: ffffffff82400c20 R15: 0000000000001098
[    0.333621] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.334696] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.335437] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.336382] Call Trace:
[    0.336698] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.337624] #PF: supervisor read access in kernel mode
[    0.338329] #PF: error_code(0x0000) - not-present page
[    0.339027] PGD 0 P4D 0 
[    0.339352] Oops: 0000 [#20] SMP PTI
[    0.339808] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.340711] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.341873] RIP: 0010:get_stack_info+0xa7/0x146
[    0.342495] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.345535] RSP: 0000:ffffffff82400680 EFLAGS: 00010006
[    0.346259] RAX: 0000000000002000 RBX: ffffffff82400770 RCX: 0000000000001000
[    0.347280] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010a0
[    0.348260] RBP: 00000000000010a0 R08: ffffffff82404000 R09: 0000000000000001
[    0.349242] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.350222] R13: ffffffff82400790 R14: ffffffff82400950 R15: 00000000000010a0
[    0.351244] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.352362] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.353375] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.355515] Call Trace:
[    0.355887] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.356937] #PF: supervisor read access in kernel mode
[    0.357731] #PF: error_code(0x0000) - not-present page
[    0.358583] PGD 0 P4D 0 
[    0.358973] Thread overran stack, or stack corrupted
[    0.359664] Oops: 0000 [#21] SMP PTI
[    0.360125] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.361128] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.362285] RIP: 0010:get_stack_info+0xa7/0x146
[    0.362912] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.365348] RSP: 0000:ffffffff824003b0 EFLAGS: 00010006
[    0.366019] RAX: 0000000000002000 RBX: ffffffff824004a0 RCX: 0000000000001000
[    0.366975] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010a8
[    0.368019] RBP: 00000000000010a8 R08: ffffffff82404000 R09: 0000000000000001
[    0.368977] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.369892] R13: ffffffff824004c0 R14: ffffffff82400680 R15: 00000000000010a8
[    0.370864] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.371893] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.372628] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.373534] Call Trace:
[    0.373852] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.374772] #PF: supervisor read access in kernel mode
[    0.375425] #PF: error_code(0x0000) - not-present page
[    0.376073] PGD 0 P4D 0 
[    0.376397] Thread overran stack, or stack corrupted
[    0.377035] Oops: 0000 [#22] SMP PTI
[    0.377495] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.378396] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.379599] RIP: 0010:get_stack_info+0xa7/0x146
[    0.380199] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.382629] RSP: 0000:ffffffff824000e0 EFLAGS: 00010006
[    0.383300] RAX: 0000000000002000 RBX: ffffffff824001d0 RCX: 0000000000001000
[    0.384212] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010b0
[    0.385123] RBP: 00000000000010b0 R08: ffffffff82404000 R09: 0000000000000001
[    0.386020] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.386972] R13: ffffffff824001f0 R14: ffffffff824003b0 R15: 00000000000010b0
[    0.387890] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.388927] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.389661] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.390614] Call Trace:
[    0.390959] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.391860] #PF: supervisor read access in kernel mode
[    0.392519] #PF: error_code(0x0000) - not-present page
[    0.393179] PGD 0 P4D 0 
[    0.393505] Thread overran stack, or stack corrupted
[    0.394145] Oops: 0000 [#23] SMP PTI
[    0.394678] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.395690] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.396845] RIP: 0010:get_stack_info+0xa7/0x146
[    0.397471] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.399955] RSP: 0000:ffffffff823ffe10 EFLAGS: 00010006
[    0.400627] RAX: 0000000000002000 RBX: ffffffff823fff00 RCX: 0000000000001000
[    0.401529] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010b8
[    0.402437] RBP: 00000000000010b8 R08: ffffffff82404000 R09: 0000000000000001
[    0.403425] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.404341] R13: ffffffff823fff20 R14: ffffffff824000e0 R15: 00000000000010b8
[    0.405258] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.406306] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.407050] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.407969] Call Trace:
[    0.408285] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.409169] #PF: supervisor read access in kernel mode
[    0.409825] #PF: error_code(0x0000) - not-present page
[    0.410484] PGD 0 P4D 0 
[    0.410808] Thread overran stack, or stack corrupted
[    0.411439] Oops: 0000 [#24] SMP PTI
[    0.411895] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.412797] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.413944] RIP: 0010:get_stack_info+0xa7/0x146
[    0.414545] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.417066] RSP: 0000:ffffffff823ffb40 EFLAGS: 00010006
[    0.417739] RAX: 0000000000002000 RBX: ffffffff823ffc30 RCX: 0000000000001000
[    0.418674] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010c0
[    0.419590] RBP: 00000000000010c0 R08: ffffffff82404000 R09: 0000000000000001
[    0.420501] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.421411] R13: ffffffff823ffc50 R14: ffffffff823ffe10 R15: 00000000000010c0
[    0.422321] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.423372] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.424109] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.425017] Call Trace:
[    0.425329] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.426196] #PF: supervisor read access in kernel mode
[    0.426891] #PF: error_code(0x0000) - not-present page
[    0.427601] PGD 0 P4D 0 
[    0.427929] Thread overran stack, or stack corrupted
[    0.428563] Oops: 0000 [#25] SMP PTI
[    0.429016] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.429909] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.431073] RIP: 0010:get_stack_info+0xa7/0x146
[    0.431681] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.434044] RSP: 0000:ffffffff823ff870 EFLAGS: 00010006
[    0.434728] RAX: 0000000000002000 RBX: ffffffff823ff960 RCX: 0000000000001000
[    0.435635] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010c8
[    0.436541] RBP: 00000000000010c8 R08: ffffffff82404000 R09: 0000000000000001
[    0.437451] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.438399] R13: ffffffff823ff980 R14: ffffffff823ffb40 R15: 00000000000010c8
[    0.439341] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.440372] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.441109] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.442019] Call Trace:
[    0.442335] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.443217] #PF: supervisor read access in kernel mode
[    0.443876] #PF: error_code(0x0000) - not-present page
[    0.444529] PGD 0 P4D 0 
[    0.444855] Thread overran stack, or stack corrupted
[    0.445491] Oops: 0000 [#26] SMP PTI
[    0.445980] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.446916] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.448067] RIP: 0010:get_stack_info+0xa7/0x146
[    0.448648] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.451103] RSP: 0000:ffffffff823ff5a0 EFLAGS: 00010006
[    0.451781] RAX: 0000000000002000 RBX: ffffffff823ff690 RCX: 0000000000001000
[    0.452697] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010d0
[    0.453613] RBP: 00000000000010d0 R08: ffffffff82404000 R09: 0000000000000001
[    0.454558] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.455468] R13: ffffffff823ff6b0 R14: ffffffff823ff870 R15: 00000000000010d0
[    0.456400] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.457798] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.458666] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.459586] Call Trace:
[    0.459905] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.460792] #PF: supervisor read access in kernel mode
[    0.461488] #PF: error_code(0x0000) - not-present page
[    0.462148] PGD 0 P4D 0 
[    0.462495] Thread overran stack, or stack corrupted
[    0.463146] Oops: 0000 [#27] SMP PTI
[    0.463609] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.464519] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.465723] RIP: 0010:get_stack_info+0xa7/0x146
[    0.466307] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.468733] RSP: 0000:ffffffff823ff2d0 EFLAGS: 00010006
[    0.469408] RAX: 0000000000002000 RBX: ffffffff823ff3c0 RCX: 0000000000001000
[    0.470328] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010d8
[    0.471243] RBP: 00000000000010d8 R08: ffffffff82404000 R09: 0000000000000001
[    0.472164] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.473103] R13: ffffffff823ff3e0 R14: ffffffff823ff5a0 R15: 00000000000010d8
[    0.474021] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.475065] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.475807] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.476728] Call Trace:
[    0.477046] BUG: unable to handle page fault for address: 0000000000001ff0
[    0.477935] #PF: supervisor read access in kernel mode
[    0.478598] #PF: error_code(0x0000) - not-present page
[    0.479253] PGD 0 P4D 0 
[    0.479578] Thread overran stack, or stack corrupted
[    0.480309] Oops: 0000 [#28] SMP PTI
[    0.480767] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc6-xfstests #4302
[    0.481672] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[    0.482865] RIP: 0010:get_stack_info+0xa7/0x146
[    0.483448] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.485908] RSP: 0000:ffffffff823ff000 EFLAGS: 00010006
[    0.486617] RAX: 0000000000002000 RBX: ffffffff823ff0f0 RCX: 0000000000001000
[    0.487584] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00000000000010e0
[    0.488503] RBP: 00000000000010e0 R08: ffffffff82404000 R09: 0000000000000001
[    0.489422] R10: 7effc073058b4865 R11: 0000000000000000 R12: ffffffff82419800
[    0.490341] R13: ffffffff823ff110 R14: ffffffff823ff2d0 R15: 00000000000010e0
[    0.491301] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.492346] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.493082] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.493998] Call Trace:
[    0.494312] CR2: 0000000000001ff0
[    0.494794] random: get_random_bytes called from init_oops_id+0x22/0x31 with crng_init=0
[    0.495905] ---[ end trace 5e20689545d6e929 ]---
[    0.496533] RIP: 0010:get_stack_info+0xa7/0x146
[    0.497116] Code: 04 d5 44 4a 00 82 66 85 c0 74 25 8b 0c d5 40 4a 00 82 0f b7 14 d5 46 4a 00 82 48 01 f1 48 01 c8 89 13 48 89 4b 08 48 89 43 10 <48> 8b 40 f0 eb 2b 65 48 8b 05 73 c0 ff 7e 48 8d 90 00 c0 ff ff 48
[    0.499567] RSP: 0000:ffffffff82403bf0 EFLAGS: 00010006
[    0.500237] RAX: 0000000000002000 RBX: ffffffff82403c90 RCX: 0000000000001000
[    0.501179] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000001008
[    0.502090] RBP: 0000000000001008 R08: ffffffff82404000 R09: 0000000000000002
[    0.503034] R10: ffffffff82419800 R11: 000000000000000c R12: ffffffff82419800
[    0.503950] R13: ffffffff82403cb0 R14: ffffffff82403d20 R15: 0000000000001008
[    0.504867] FS:  0000000000000000(0000) GS:ffffffff82914000(0000) knlGS:0000000000000000
[    0.505908] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.506696] CR2: 0000000000001ff0 CR3: 0000000002412000 CR4: 00000000000606b0
[    0.507614] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.508501] Rebooting in 5 seconds..
QEMU: Terminated
\r