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Date:   Mon, 16 Jul 2018 09:48:24 -0700
From:   Guenter Roeck <linux@roeck-us.net>
To:     Nathan Chancellor <natechancellor@gmail.com>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
        akpm@linux-foundation.org, shuah@kernel.org, patches@kernelci.org,
        ben.hutchings@codethink.co.uk, lkft-triage@lists.linaro.org,
        stable@vger.kernel.org
Subject: Re: [PATCH 4.17 00/67] 4.17.7-stable review
Message-ID: <20180716164824.GA14451@roeck-us.net>
References: <20180716073443.294323458@linuxfoundation.org>
 <20180716163338.GD12065@roeck-us.net>
 <20180716164033.GA4286@flashbox>
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On Mon, Jul 16, 2018 at 09:40:33AM -0700, Nathan Chancellor wrote:
> On Mon, Jul 16, 2018 at 09:33:38AM -0700, Guenter Roeck wrote:
> > On Mon, Jul 16, 2018 at 09:34:29AM +0200, Greg Kroah-Hartman wrote:
> > > This is the start of the stable review cycle for the 4.17.7 release.
> > > There are 67 patches in this series, all will be posted as a response
> > > to this one.  If anyone has any issues with these being applied, please
> > > let me know.
> > > 
> > > Responses should be made by Wed Jul 18 07:34:11 UTC 2018.
> > > Anything received after that time might be too late.
> > > 
> > 
> > Build results:
> > 	total: 134 pass: 134 fail: 0
> > Qemu test results:
> > 	total: 171 pass: 159 fail: 12
> > Failed tests: 
> > 	i386:Broadwell:q35:defconfig:smp:rootfs 
> > 	i386:Skylake-Client:q35:defconfig:smp:rootfs 
> > 	i386:SandyBridge:q35:defconfig:smp:rootfs
> > 	i386:Haswell:pc:defconfig:smp:rootfs 
> > 	i386:Nehalem:q35:defconfig:smp:rootfs 
> > 	i386:phenom:pc:defconfig:smp:rootfs 
> > 	i386:Opteron_G5:q35:defconfig:smp:initrd 
> > 	i386:Westmere:q35:defconfig:smp:initrd 
> > 	i386:core2duo:q35:defconfig:nosmp:rootfs 
> > 	i386:Conroe:pc:defconfig:nosmp:rootfs 
> > 	i386:Opteron_G1:pc:defconfig:nosmp:initrd
> > 	i386:n270:q35:defconfig:nosmp:rootfs
> > 
> > All 32-bit i386 boot tests crash.
> > 
> > [    0.000000] BUG: unable to handle kernel NULL pointer dereference at 00000000
> > [    0.000000] *pde = 00000000 
> > [    0.000000] Oops: 0002 [#1] SMP
> > [    0.000000] Modules linked in:
> > [    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.17.7-rc1+ #1
> > [    0.000000] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.11.1-0-g0551a4be2c-prebuilt.qemu-project.org 04/01/24
> > [    0.000000] EIP: zero_resv_unavail+0x9b/0x103
> > [    0.000000] EFLAGS: 00200002 CPU: 0
> > [    0.000000] EAX: 00000000 EBX: 00000000 ECX: 00000008 EDX: 00000000
> > [    0.000000] ESI: c6bc5e90 EDI: 00000000 EBP: c6bc5eac ESP: c6bc5e80
> > [    0.000000]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
> > [    0.000000] CR0: 80050033 CR2: 00000000 CR3: 06d67000 CR4: 00040690
> > [    0.000000] Call Trace:
> > [    0.000000]  free_area_init_nodes+0x407/0x44c
> > [    0.000000]  zone_sizes_init+0x45/0x5c
> > [    0.000000]  paging_init+0xac/0xaf
> > [    0.000000]  native_pagetable_init+0xc6/0xce
> > [    0.000000]  setup_arch+0x9c6/0xb18
> > [    0.000000]  start_kernel+0x4f/0x3d2
> > [    0.000000]  ? idt_setup_early_handler+0x2b/0x3e
> > [    0.000000]  i386_start_kernel+0x95/0x99
> > [    0.000000]  startup_32_smp+0x164/0x168
> > 
> > Guenter
> 
> I think this is caused by 3e3eda67092b ("mm: zero available pages before
> memmap init"). A fix for it was posted to the mailing list this morning:
> https://lore.kernel.org/lkml/20180716151630.770-1-pasha.tatashin@oracle.com/
> 

Yes, it looks like this was inherited from upstream. The same failure is seen
in in v4.17-rc5 and next-20180716.

Guenter