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Date:   Wed, 14 Feb 2018 08:25:46 +0800
From:   kernel test robot <fengguang.wu@...el.com>
To:     frowand.list@...il.com
Cc:     Rob Herring <robh+dt@...nel.org>, cpandya@...eaurora.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        lkp@...org
Subject: [of]  965aa3fac0:
 BUG:sleeping_function_called_from_invalid_context_at_mm/slab.h

FYI, we noticed the following commit (built with gcc-7):

commit: 965aa3fac087bd026f614824b821ef0238e77d60 ("of: cache phandle nodes to decrease cost of of_find_node_by_phandle()")
url: https://github.com/0day-ci/linux/commits/frowand-list-gmail-com/of-cache-phandle-nodes-to-decrease-cost-of-of_find_node_by_phandle/20180203-165032
base: https://git.kernel.org/cgit/linux/kernel/git/robh/linux.git for-next

in testcase: trinity
with following parameters:

	runtime: 300s

test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/


on test machine: qemu-system-i386 -enable-kvm -smp 2 -m 320M

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


+----------------------------------------------------------------+------------+------------+
|                                                                | 3a6fbcb2e2 | 965aa3fac0 |
+----------------------------------------------------------------+------------+------------+
| boot_successes                                                 | 6          | 0          |
| boot_failures                                                  | 0          | 8          |
| BUG:sleeping_function_called_from_invalid_context_at_mm/slab.h | 0          | 8          |
+----------------------------------------------------------------+------------+------------+



[    0.224970] BUG: sleeping function called from invalid context at mm/slab.h:419
[    0.226666] in_atomic(): 1, irqs_disabled(): 1, pid: 1, name: swapper/0
[    0.226666] 1 lock held by swapper/0/1:
[    0.226666]  #0:  (devtree_lock){....}, at: [<ba54064f>] of_core_init+0x2c/0x120
[    0.226666] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.15.0-rc3-00024-g965aa3f #2
[    0.226666] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[    0.226666] Call Trace:
[    0.226666]  dump_stack+0x90/0xc1
[    0.226666]  ___might_sleep+0x116/0x12a
[    0.226666]  __might_sleep+0x6a/0x71
[    0.226666]  slab_pre_alloc_hook+0x34/0x3a
[    0.226666]  __kmalloc+0x5a/0x109
[    0.226666]  ? of_core_init+0x56/0x120
[    0.226666]  of_core_init+0x56/0x120
[    0.226666]  driver_init+0x3a/0x3c
[    0.226666]  kernel_init_freeable+0x81/0x182
[    0.226666]  ? rest_init+0xdc/0xdc
[    0.226666]  kernel_init+0xd/0xd5
[    0.226666]  ret_from_fork+0x19/0x24
[    0.241320] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370867519511994 ns
[    0.243356] futex hash table entries: 512 (order: 4, 65536 bytes)
[    0.250186] xor: measuring software checksum speed
[    0.286678]    pIII_sse  :  9343.200 MB/sec
[    0.320011]    prefetch64-sse: 11689.200 MB/sec
[    0.321792] xor: using function: prefetch64-sse (11689.200 MB/sec)
[    0.323356] prandom: seed boundary self test passed
[    0.327067] prandom: 100 self tests passed
[    0.328603] pinctrl core: initialized pinctrl subsystem
[    0.331923] NET: Registered protocol family 16
[    0.336737] cpuidle: using governor menu
[    0.340969] ACPI: bus type PCI registered
[    0.343398] PCI: Using configuration type 1 for base access
[    0.436695] raid6: mmxx1    gen()  2907 MB/s
[    0.493355] raid6: mmxx2    gen()  3451 MB/s
[    0.550029] raid6: sse1x1   gen()  2757 MB/s
[    0.606694] raid6: sse1x2   gen()  3498 MB/s
[    0.663347] raid6: sse2x1   gen()  5895 MB/s
[    0.720015] raid6: sse2x1   xor()  4209 MB/s
[    0.776680] raid6: sse2x2   gen()  7216 MB/s
[    0.833351] raid6: sse2x2   xor()  4559 MB/s
[    0.834868] raid6: using algorithm sse2x2 gen() 7216 MB/s
[    0.836529] raid6: .... xor() 4559 MB/s, rmw enabled
[    0.836675] raid6: using intx1 recovery algorithm
[    0.843471] ACPI: Added _OSI(Module Device)
[    0.846675] ACPI: Added _OSI(Processor Device)
[    0.848185] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.850008] ACPI: Added _OSI(Processor Aggregator Device)
[    0.866591] ACPI: Interpreter enabled
[    0.866794] ACPI: (supports S0 S3 S5)
[    0.868181] ACPI: Using IOAPIC for interrupt routing
[    0.870131] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.875152] ACPI: Enabled 2 GPEs in block 00 to 0F
[    0.935608] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.936701] acpi PNP0A03:00: _OSC: OS supports [Segments MSI]
[    0.938597] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[    0.940511] PCI host bridge to bus 0000:00
[    0.943349] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7 window]
[    0.945289] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    0.946682] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[    0.949313] pci_bus 0000:00: root bus resource [mem 0x14000000-0xfebfffff window]
[    0.950022] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.953447] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
[    0.958202] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100
[    0.962102] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180
[    0.969205] pci 0000:00:01.1: reg 0x20: [io  0xc080-0xc08f]
[    0.973389] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io  0x01f0-0x01f7]
[    0.976678] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io  0x03f6]
[    0.978604] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io  0x0170-0x0177]
[    0.980009] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io  0x0376]
[    0.984299] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000
[    0.986761] pci 0000:00:01.3: quirk: [io  0x0600-0x063f] claimed by PIIX4 ACPI
[    0.989387] pci 0000:00:01.3: quirk: [io  0x0700-0x070f] claimed by PIIX4 SMB
[    0.991639] pci 0000:00:02.0: [1234:1111] type 00 class 0x030000
[    0.996679] pci 0000:00:02.0: reg 0x10: [mem 0xfd000000-0xfdffffff pref]
[    1.003345] pci 0000:00:02.0: reg 0x18: [mem 0xfebf0000-0xfebf0fff]
[    1.014696] pci 0000:00:02.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref]
[    1.018248] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000
[    1.023352] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff]
[    1.033133] pci 0000:00:03.0: reg 0x14: [io  0xc000-0xc03f]
[    1.050890] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref]
[    1.060444] pci 0000:00:04.0: [1af4:1001] type 00 class 0x010000
[    1.066682] pci 0000:00:04.0: reg 0x10: [io  0xc040-0xc07f]
[    1.076693] pci 0000:00:04.0: reg 0x14: [mem 0xfebf1000-0xfebf1fff]
[    1.100012] pci 0000:00:04.0: reg 0x20: [mem 0xfe000000-0xfe003fff 64bit pref]
[    1.114367] pci 0000:00:05.0: [8086:25ab] type 00 class 0x088000
[    1.120936] pci 0000:00:05.0: reg 0x10: [mem 0xfebf2000-0xfebf200f]
[    1.144467] pci_bus 0000:00: on NUMA node 0
[    1.151614] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[    1.154737] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[    1.157861] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[    1.160975] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[    1.166813] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
[    1.173478] pci 0000:00:02.0: vgaarb: setting as boot VGA device
[    1.175299] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    1.176692] pci 0000:00:02.0: vgaarb: bridge control possible
[    1.178458] vgaarb: loaded
[    1.190067] EDAC MC: Ver: 3.0.0
[    1.193600] EDAC DEBUG: edac_mc_sysfs_init: device mc created
[    1.199892] PCI: Using ACPI for IRQ routing
[    1.200009] PCI: pci_cache_line_size set to 32 bytes
[    1.201544] e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff]


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
lkp

View attachment "config-4.15.0-rc3-00024-g965aa3f" of type "text/plain" (114182 bytes)

View attachment "job-script" of type "text/plain" (3923 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (12144 bytes)

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