Message-ID: <CAEUSe7-d35WPJnx1hduji80_aym53ztQi-EkCkvu7Kf3S0Wjwg@mail.gmail.com>
Date:   Mon, 11 Nov 2019 21:19:40 -0600
From:   Daniel Díaz <daniel.diaz@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Naresh Kamboju <naresh.kamboju@...aro.org>,
        Sasha Levin <sashal@...nel.org>, lkft-triage@...ts.linaro.org,
        Dan Rue <dan.rue@...aro.org>,
        Anders Roxell <anders.roxell@...aro.org>,
        linux- stable <stable@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>, linux-mm@...ck.org
Subject: Re: stable-rc 4.14.154-rc1/0d12dcf336c6: regressions detected in
 project stable v.4.14.y on OE - sanity

Hello!

On Mon, 11 Nov 2019 at 12:58, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Mon, Nov 11, 2019 at 11:45:35PM +0530, Naresh Kamboju wrote:
> > Hi Greg,
> >
> > Regressions detected in project stable v.4.14.
> > arm64, arm, x86_64 boot failed.
> >
> > Summary
> > ------------------------------------------------------------------------
> >   git branch: linux-4.14.y
> >   git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> >   git commit: a67492b55c53045e9c0b9969f04410723448c1ee
> >   git describe: v4.14.153-104-ga67492b55c53
> >   make_kernelversion: 4.14.154-rc1
> >   kernel-config:
> > http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/juno/lkft/linux-stable-rc-4.14/641/config
> >
> >
> > arm64 kernel crash log:
> > ---------------------------
> > [    0.000000] Linux version 4.14.154-rc1 (oe-user@...host) (gcc
> > version 7.3.0 (GCC)) #1 SMP PREEMPT Mon Nov 11 17:15:34 UTC 2019
> > [    0.000000] Boot CPU: AArch64 Processor [410fd033]
> > [    0.000000] Machine model: ARM Juno development board (r2)
> > [    0.000000] earlycon: pl11 at MMIO 0x000000007ff80000 (options '')
> > [    0.000000] bootconsole [pl11] enabled
> > [    0.000000] efi: Getting EFI parameters from FDT:
> > [    0.000000] efi: UEFI not found.
> > [    0.000000] cma: Reserved 16 MiB at 0x00000000fe000000
> > [    0.000000] NUMA: No NUMA configuration found
> > [    0.000000] NUMA: Faking a node at [mem
> > 0x0000000000000000-0x00000009ffffffff]
> > [    0.000000] NUMA: NODE_DATA [mem 0x9fffc6f80-0x9fffc8bff]
> > [    0.000000] Zone ranges:
> > [    0.000000]   DMA      [mem 0x0000000080000000-0x00000000ffffffff]
> > [    0.000000]   Normal   [mem 0x0000000100000000-0x00000009ffffffff]
> > [    0.000000] Movable zone start for each node
> > [    0.000000] Early memory node ranges
> > [    0.000000]   node   0: [mem 0x0000000080000000-0x00000000feffffff]
> > [    0.000000]   node   0: [mem 0x0000000880000000-0x00000009ffffffff]
> > [    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000009ffffffff]
> > [    0.000000] On node 0 totalpages: 2093056
> > [    0.000000]   DMA zone: 8192 pages used for memmap
> > [    0.000000]   DMA zone: 0 pages reserved
> > [    0.000000]   DMA zone: 520192 pages, LIFO batch:31
> > [    0.000000]   Normal zone: 24576 pages used for memmap
> > [    0.000000]   Normal zone: 1572864 pages, LIFO batch:31
> > [    0.000000] psci: probing for conduit method from DT.
> > [    0.000000] psci: PSCIv1.1 detected in firmware.
> > [    0.000000] psci: Using standard PSCI v0.2 function IDs
> > [    0.000000] psci: Trusted OS migration not required
> > [    0.000000] psci: SMC Calling Convention v1.0
> > [    0.000000] percpu: Embedded 25 pages/cpu s62280 r8192 d31928 u102400
> > [    0.000000] pcpu-alloc: s62280 r8192 d31928 u102400 alloc=25*4096
> > [    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [0] 4 [0] 5
> > [    0.000000] Detected VIPT I-cache on CPU0
> > [    0.000000] CPU features: enabling workaround for ARM erratum 845719
> > [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 2060288
> > [    0.000000] Policy zone: Normal
> > [    0.000000] Kernel command line: console=ttyAMA0,115200n8
> > root=/dev/nfs rw
> > nfsroot=10.66.16.123:/var/lib/lava/dispatcher/tmp/1004132/extract-nfsrootfs-jn9hl2x_,tcp,hard,intr,vers=3
> > rootwait earlycon=pl011,0x7ff80000 debug systemd.log_target=null
> > user_debug=31 androidboot.hardware=juno loglevel=9
> > sky2.mac_address=0x00,0x02,0xF7,0x00,0x68,0x15 ip=dhcp
> > [    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
> > [    0.000000] software IO TLB: mapped [mem 0xf9fff000-0xfdfff000] (64MB)
> > [    0.000000] Memory: 8123672K/8372224K available (12988K kernel
> > code, 1878K rwdata, 5196K rodata, 1728K init, 12356K bss, 232168K
> > reserved, 16384K cma-reserved)
> > [    0.000000] Virtual kernel memory layout:
> > [    0.000000]     modules : 0xffff000000000000 - 0xffff000008000000
> > (   128 MB)
> > [    0.000000]     vmalloc : 0xffff000008000000 - 0xffff7dffbfff0000
> > (129022 GB)
> > [    0.000000]       .text : 0xffff000008080000 - 0xffff000008d30000
> > ( 12992 KB)
> > [    0.000000]     .rodata : 0xffff000008d30000 - 0xffff000009250000
> > (  5248 KB)
> > [    0.000000]       .init : 0xffff000009250000 - 0xffff000009400000
> > (  1728 KB)
> > [    0.000000]       .data : 0xffff000009400000 - 0xffff0000095d5a00
> > (  1879 KB)
> > [    0.000000]        .bss : 0xffff0000095d5a00 - 0xffff00000a1e6dd0
> > ( 12357 KB)
> > [    0.000000]     fixed   : 0xffff7dfffe7f9000 - 0xffff7dfffec00000
> > (  4124 KB)
> > [    0.000000]     PCI I/O : 0xffff7dfffee00000 - 0xffff7dffffe00000
> > (    16 MB)
> > [    0.000000]     vmemmap : 0xffff7e0000000000 - 0xffff800000000000
> > (  2048 GB maximum)
> > [    0.000000]               0xffff7e0000000000 - 0xffff7e0026000000
> > (   608 MB actual)
> > [    0.000000]     memory  : 0xffff800000000000 - 0xffff800980000000
> > ( 38912 MB)
> > [    0.000000] Unable to handle kernel NULL pointer dereference at
> > virtual address 00000510
> > [    0.000000] Mem abort info:
> > [    0.000000]   Exception class = DABT (current EL), IL = 32 bits
> > [    0.000000]   SET = 0, FnV = 0
> > [    0.000000]   EA = 0, S1PTW = 0
> > [    0.000000] Data abort info:
> > [    0.000000]   ISV = 0, ISS = 0x00000004
> > [    0.000000]   CM = 0, WnR = 0
> > [    0.000000] [0000000000000510] user address but active_mm is swapper
> > [    0.000000] Internal error: Oops: 96000004 [#1] PREEMPT SMP
> > [    0.000000] Modules linked in:
> > [    0.000000] Process swapper (pid: 0, stack limit = 0xffff000009400000)
> > [    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.14.154-rc1 #1
> > [    0.000000] Hardware name: ARM Juno development board (r2) (DT)
> > [    0.000000] task: ffff000009419780 task.stack: ffff000009400000
> > [    0.000000] PC is at __rmqueue+0x3c4/0x908
> > [    0.000000] LR is at __rmqueue+0x384/0x908
> > [    0.000000] pc : [<ffff0000082594ec>] lr : [<ffff0000082594ac>]
> > pstate: 600000c5
> > [    0.000000] sp : ffff000009403b10
> > [    0.000000] x29: ffff000009403b10 x28: 0000000000000000
> > [    0.000000] x27: 000000000000000a x26: ffff80097ffc7700
> > [    0.000000] x25: 00007ff6800387c0 x24: 0000000000000000
> > [    0.000000] x23: ffff00000940f000 x22: ffff80097ffc7800
> > [    0.000000] x21: ffffffffffffff00 x20: ffff80097ffc7840
> > [    0.000000] x19: ffff0000093ef000 x18: 0000000000000001
> > [    0.000000] x17: 000000000000001c x16: 000000000000001b
> > [    0.000000] x15: 000000000000001a x14: ffff0000096833f8
> > [    0.000000] x13: ffff0000095e3198 x12: 000000000c67c24e
> > [    0.000000] x11: ffff000009419fb0 x10: ffff00000a174000
> > [    0.000000] x9 : ffff00000988b728 x8 : 0000000000000000
> > [    0.000000] x7 : ffff0000092cf3a4 x6 : 0000000000000000
> > [    0.000000] x5 : fffffffffffff1ff x4 : ffff7e0025de0020
> > [    0.000000] x3 : ffff7e0025dd0020 x2 : 000000000000000a
> > [    0.000000] x1 : 000000000000001e x0 : 0000000000000410
> > [    0.000000] Call trace:
> > [    0.000000] Exception stack(0xffff0000094039d0 to 0xffff000009403b10)
> > [    0.000000] 39c0:
> > 0000000000000410 000000000000001e
> > [    0.000000] 39e0: 000000000000000a ffff7e0025dd0020
> > ffff7e0025de0020 fffffffffffff1ff
> > [    0.000000] 3a00: 0000000000000000 ffff0000092cf3a4
> > 0000000000000000 ffff00000988b728
> > [    0.000000] 3a20: ffff00000a174000 ffff000009419fb0
> > 000000000c67c24e ffff0000095e3198
> > [    0.000000] 3a40: ffff0000096833f8 000000000000001a
> > 000000000000001b 000000000000001c
> > [    0.000000] 3a60: 0000000000000001 ffff0000093ef000
> > ffff80097ffc7840 ffffffffffffff00
> > [    0.000000] 3a80: ffff80097ffc7800 ffff00000940f000
> > 0000000000000000 00007ff6800387c0
> > [    0.000000] 3aa0: ffff80097ffc7700 000000000000000a
> > 0000000000000000 ffff000009403b10
> > [    0.000000] 3ac0: ffff0000082594ac ffff000009403b10
> > ffff0000082594ec 00000000600000c5
> > [    0.000000] 3ae0: ffffffffffffff00 ffff80097ffc7800
> > ffffffffffffffff ffff0000082594ac
> > [    0.000000] 3b00: ffff000009403b10 ffff0000082594ec
> > [    0.000000] [<ffff0000082594ec>] __rmqueue+0x3c4/0x908
> > [    0.000000] [<ffff000008259e98>] get_page_from_freelist+0x468/0xcb8
> > [    0.000000] [<ffff00000825aa3c>] __alloc_pages_nodemask+0x12c/0x1248
> > [    0.000000] [<ffff0000082cdba8>] new_slab+0xc0/0x568
> > [    0.000000] [<ffff0000082d5328>] __kmem_cache_create+0x2e0/0x628
> > [    0.000000] [<ffff000009271dec>] create_boot_cache+0xa8/0xdc
> > [    0.000000] [<ffff000009275b40>] kmem_cache_init+0x58/0x120
> > [    0.000000] [<ffff000009250b3c>] start_kernel+0x200/0x3d8
> > [    0.000000] Code: 8b000401 8b010800 d37df000 8b081000 (f9408000)
> > [    0.000000] random: get_random_bytes called from
> > print_oops_end_marker+0x54/0x70 with crng_init=0
> > [    0.000000] ---[ end trace c75a488acdeef932 ]---
> > [    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
> > [    0.000000] ---[ end Kernel panic - not syncing: Attempted to kill
> > the idle task!
> >
> >
> > Full test log link,
> > https://lkft.validation.linaro.org/scheduler/job/1004132#L482
>
> Any chance you can bisect?

Reverting 61dbb1f20417 ("mm, meminit: recalculate pcpu batch and high
limits after init completes") got the system working again.

Greetings!

Daniel Díaz
daniel.diaz@...aro.org

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