Hi Andy,
On Sat, Oct 22, 2016 at 07:40:14PM +0300, Andy Shevchenko wrote:
On Mon, 2016-09-05 at 18:15 +0300, Andy Shevchenko wrote:
+Heikki
On Sat, 2016-09-03 at 16:25 +0800, kernel test robot wrote:
> Greetings,
>
> 0day kernel testing robot got the below dmesg and the first bad
> commit
> is
Briefly tested I have hang issues *with* or *without* the mentioned
commit if under hang you meant no getty available on serial console.
Otherwise I see output from kernel till
[ 61.625900] raid6test: complete (2429 tests, 0 failures)
[ 61.671165] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 61.678004] EDD information not available.
[ 61.714036] ALSA device list:
[ 61.717459] #0: Dummy 1
[ 61.720480] #1: MTPAV on parallel port at 0x378
Attached defconfigs per commit I have tested (also diff between mine
and
yours when I did make savedefconfig).
So, may I ask what exact hardware you are using to test this one?
May I ask beloved LKP team what the status of the issue is? Shall we
close it or there is more information coming?
Please close the issue.
I tried rebuild the kernel and redo the tests, and find the new kernel
no longer has early boot hang. Sorry for the noise!
Cheers,
Fengguang
>
> https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-
> next
>
> commit a13e19cf3dc1080cf8a3a174cefd9199610faed7
> Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> AuthorDate: Wed Aug 17 19:20:27 2016 +0300
> Commit: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> CommitDate: Wed Aug 31 16:13:30 2016 +0200
>
> serial: 8250_lpss: split LPSS driver to separate module
>
> The SoCs, such as Intel Braswell, have DesignWare UART IP. Split
> out the
> support of such chips to a separate module which also will be
> used
> for Intel
> Quark later.
>
> The rationale to have the separate driver to be existing:
> - Do not contaminate 8250_pci.c anymore with LPSS related quirks
> - All of them are using same DMA engine and they are Designware
> IP
> which means
> that in the future we might share the code between 8250_dw.c
> and
> 8250_lpss.c
> - It reduces the kernel memory footprint on non-X86 machines
> where
> 8250_pci.c
> is in use
>
> Besides the split the driver also has been refactored, in
> particular a) the DMA
> and port setup are separate functions, b) the two new structures
> lpss8250 and
> lpss8250_board are introduced to keep necessary data instead of
> pciserial_board, c) DMA parameters are passed to the DMA setup
> via
> mentioned
> custom structure. Most of the changes are done due to the future
> support of
> UART DMA on Intel Quark.
>
> The Intel Quark UART DMA support is based on bits taking from
> BSP
> code
> published by Intel earlier.
>
> The driver does not use any specific power management. PCI core
> takes care of
> the default behaviour during suspend and resume.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxx
> m>
> Tested-by: Bryan O'Donoghue <pure.logic@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
>
> +-------------------------------+------------+------------+---------
> --
> -+
> >
> > | 68af490b03 | a13e19cf3d |
> > 6fe4da5401
> > >
>
> +-------------------------------+------------+------------+---------
> --
> -+
> >
> > boot_successes | 63 | 0 |
> > 0 |
> > boot_failures | 0 | 26 |
> > 27 |
> > BUG:kernel_hang_in_boot_stage | 0 | 26 |
> > 27 |
>
> +-------------------------------+------------+------------+---------
> --
> -+
>
> Booting the kernel.
>
> Elapsed time: 500
> BUG: kernel hang in boot stage
> Linux version 4.8.0-rc2-00028-ga13e19c #1
> Command line: root=/dev/ram0 hung_task_panic=1 debug apic=debug
> sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100
> net.ifnames=0
> printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic
> oops=panic load_ramdisk=2 prompt_ramdisk=0 systemd.log_level=err
> ignore_loglevel earlyprintk=ttyS0,115200 console=ttyS0,115200
> console=tty0 vga=normal rw link=/kbuild-tests/run-queue/kvm/x86_64-
> randconfig-r0-09031101/linux-devel:devel-spot-
> 201609030826:a13e19cf3dc1080cf8a3a174cefd9199610faed7:bisect-linux-
> 0/.vmlinuz-a13e19cf3dc1080cf8a3a174cefd9199610faed7-20160903152912-
> 8-
> vp branch=linux-devel/devel-spot-201609030826
> BOOT_IMAGE=/pkg/linux/x86_64-randconfig-r0-09031101/gcc-
> 6/a13e19cf3dc1080cf8a3a174cefd9199610faed7/vmlinuz-4.8.0-rc2-00028-
> ga13e19c drbd.minor_count=8
>
>
> git bisect start 6fe4da54019254083959652e61fab5d7b6d8b16b
> 3eab887a55424fc2c27553b7bfe32330df83f7b8 --
> git bisect good 86374892625f368ff0a7d0045bbd10f5005f5095 #
> 13:00 20+ 0 Merge 'linux-review/Paul-Burton/Partial-MIPS-
> Malta-DT-conversion/20160903-000153' into devel-spot-201609030826
> git bisect bad 28b0a3136795a9a1d1abb0331790bbae75e71e03 #
> 13:14 0- 11 Merge 'renesas/topic/sdr104-v6' into devel-
> spot-
> 201609030826
> git bisect good 2e5ad9bf16a597bcf52ffee14dc5a3dc80e60ae9 #
> 13:24 22+ 0 Merge 'linux-review/Wang-Nan/perf-report-
> Recognize-hugetlb-mapping-as-anon-mapping/20160902-220432' into
> devel-
> spot-201609030826
> git bisect bad bedfbf8942db947f2a9be3e3a4e01d8ddf3bdf4e #
> 13:40 0- 8 Merge 'linux-review/Luca-Ceresoli/rtl8723au-
> remove-declaration-of-unimplemented-functions/20160902-211231' into
> devel-spot-201609030826
> git bisect bad 687a5fb1c4382d1e37d444fdc24f9a0ecb4034a0 #
> 14:02 0- 10 Merge 'tty/tty-testing' into devel-spot-
> 201609030826
> git bisect good 259bbca0cd7b626ab0fc5eb63dfc24b1408e29b4 #
> 14:13 21+ 0 Merge 'linux-review/Toke-H-iland-J-
> rgensen/mac80211-Move-reorder-sensitive-TX-handlers-to-after-TXQ-
> dequeue/20160902-215155' into devel-spot-201609030826
> git bisect good bf7a791d2c931375ae966adfb0a93eae426c6d7e #
> 14:26 22+ 0 Merge 'linux-review/Hariprasad-Shenai/cxgb4-
> Add-
> support-for-ndo_get_vf_config/20160902-214923' into devel-spot-
> 201609030826
> git bisect good 5887ad43ee02a00f17a6132b7fb256dc6865474c #
> 14:41 22+ 0 tty: serial: fsl_lpuart: Use cyclic DMA for Rx
> git bisect good 9217a5bf66061c392e461255c5d9d41aac136e58 #
> 14:50 22+ 0 dmaengine: dw: keep copy of custom slave
> config
> in dwc
> git bisect good 8d17047207d52182ccd55b9529e1c8cc062c07c2 #
> 15:06 22+ 0 serial: 8250_dma: switch to new
> dmaengine_terminate_* API
> git bisect good 68af490b03b40cc31b2cd47899661d87ab9f127d #
> 15:22 22+ 0 serial: 8250: enable AFE on ports where FIFO
> is
> 16 bytes
> git bisect bad a13e19cf3dc1080cf8a3a174cefd9199610faed7 #
> 15:36 0- 4 serial: 8250_lpss: split LPSS driver to
> separate
> module
> # first bad commit: [a13e19cf3dc1080cf8a3a174cefd9199610faed7]
> serial:
> 8250_lpss: split LPSS driver to separate module
> git bisect good 68af490b03b40cc31b2cd47899661d87ab9f127d #
> 15:40 63+ 0 serial: 8250: enable AFE on ports where FIFO
> is
> 16 bytes
> # extra tests on HEAD of linux-devel/devel-spot-201609030826
> git bisect bad 6fe4da54019254083959652e61fab5d7b6d8b16b #
> 15:40 0- 27 0day head guard for 'devel-spot-201609030826'
> # extra tests on tree/branch tty/tty-next
> git bisect bad d2f5a7311bcaed681a41cb3419b8fe92a7b68bf5 #
> 16:00 0- 17 dmaengine: hsu: refactor hsu_dma_do_irq() to
> return int
> # extra tests on tree/branch linus/master
> git bisect good 0141af184adc7f6ea9bd2f9631a15704d0806f8b #
> 16:10 66+ 1 Merge branch 'for-linus' of
> git://git.kernel.dk/linux-block
> # extra tests on tree/branch linux-next/master
> git bisect good 0f98f121e1670eaa2a2fbb675e07d6ba7f0e146f #
> 16:24 65+ 1 Add linux-next specific files for 20160825
>
>
> ---
> 0-DAY kernel test infrastructure Open Source
> Technology
> Center
> https://lists.01.org/pipermail/lkp Intel
> Corporation
--
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy
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