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SubjectRe: next: fuloong2e qemu boot failure due to 'MIPS: Loongson: AddLoongson-3A R2 basic support'
From
I'll send a patch, but it seems be ignored by maintainer.
https://patchwork.linux-mips.org/patch/13136/

Huacai

On Fri, May 13, 2016 at 11:46 AM, Guenter Roeck <linux@roeck-us.net> wrote:
> On 04/19/2016 10:41 PM, Huacai Chen wrote:
>>
>> This is a kernel bug, I'll send a patch.
>>
>
> Did you ever send a patch to fix this problem ? It is still broken in
> next-20160512.
>
> Guenter
>
>
>> Huacai
>>
>> On Wed, Apr 20, 2016 at 12:43 PM, Guenter Roeck <linux@roeck-us.net>
>> wrote:
>>>
>>> On 04/19/2016 08:37 PM, 陈华才 wrote:
>>>>
>>>>
>>>> Hi,
>>>>
>>>> Could you please remove the line "#define cpu_hwrena_impl_bits
>>>> 0xc0000000" in
>>>> arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h
>>>> and try again?Thanks.
>>>>
>>>
>>> That fixes the problem.
>>>
>>> Does this need to be addressed in qemu or in the Linux kernel ?
>>>
>>> Thanks,
>>> Guenter
>>>
>>>
>>>> Huacai
>>>>
>>>> ------------------ Original ------------------
>>>> From: "Guenter Roeck"<linux@roeck-us.net>;
>>>> Date: Wed, Apr 20, 2016 10:54 AM
>>>> To: "Huacai Chen"<chenhc@lemote.com>;
>>>> Cc: "Ralf Baechle"<ralf@linux-mips.org>;
>>>> "linux-mips"<linux-mips@linux-mips.org>;
>>>> "linux-next"<linux-next@vger.kernel.org>;
>>>> "linux-kernel"<linux-kernel@vger.kernel.org>;
>>>> Subject: next: fuloong2e qemu boot failure due to 'MIPS: Loongson:
>>>> AddLoongson-3A R2 basic support'
>>>>
>>>> Hi,
>>>>
>>>> qemu fails to boot in -next for machine fulong2e with configuration
>>>> fuloong2e_defconfig. Bisect points to commit 'MIPS: Loongson: Add
>>>> Loongson-3A R2 basic support'. qemu hangs in boot, after displaying
>>>> "Inode-cache hash table entries: 16384 (order: 3, 131072 bytes)".
>>>>
>>>> Bisect log is attached.
>>>>
>>>> Guenter
>>>>
>>>> ---
>>>> # bad: [1bd7a2081d2c7b096f75aa934658e404ccaba5fd] Add linux-next
>>>> specific
>>>> files for 20160418
>>>> # good: [bf16200689118d19de1b8d2a3c314fc21f5dc7bb] Linux 4.6-rc3
>>>> git bisect start 'HEAD' 'v4.6-rc3'
>>>> # bad: [493ac92ff65ec4c4cd4c43870e778760a012951d] Merge remote-tracking
>>>> branch 'ipvs-next/master'
>>>> git bisect bad 493ac92ff65ec4c4cd4c43870e778760a012951d
>>>> # bad: [20ca3ae9c517eee9b2f1bd0fb2a06e2d14153792] Merge remote-tracking
>>>> branch 'btrfs-kdave/for-next'
>>>> git bisect bad 20ca3ae9c517eee9b2f1bd0fb2a06e2d14153792
>>>> # good: [c454e65fb9ade11d0f84718d06a6888e2c92804d] Merge remote-tracking
>>>> branch 'omap/for-next'
>>>> git bisect good c454e65fb9ade11d0f84718d06a6888e2c92804d
>>>> # good: [6f5c70fb9b4fc0534157bfa40cea9b402e6f2506] Merge remote-tracking
>>>> branch 'microblaze/next'
>>>> git bisect good 6f5c70fb9b4fc0534157bfa40cea9b402e6f2506
>>>> # bad: [7f053cd68fd14243c8f202b4086d7dd75c409e6f] MIPS: Loongson-3:
>>>> Introduce CONFIG_LOONGSON3_ENHANCEMENT
>>>> git bisect bad 7f053cd68fd14243c8f202b4086d7dd75c409e6f
>>>> # good: [e9aacdd7f0b66c4ace17e5950c48e7cc61a253c8] MIPS: Allow RIXI to
>>>> be
>>>> used on non-R2 or R6 cores
>>>> git bisect good e9aacdd7f0b66c4ace17e5950c48e7cc61a253c8
>>>> # good: [d1e8b9a8dc6c7fa9add5dfa7083e035ce037e56d] MAINTAINERS: add
>>>> Loongson1 architecture entry
>>>> git bisect good d1e8b9a8dc6c7fa9add5dfa7083e035ce037e56d
>>>> # good: [13ff6275bb389c3669082d3ef8483592a31eb0ea] MIPS: Fix siginfo.h
>>>> to
>>>> use strict posix types
>>>> git bisect good 13ff6275bb389c3669082d3ef8483592a31eb0ea
>>>> # good: [66e74bdd51e617023fa2e79a807b704fb3eed8aa] MIPS: Enable ptrace
>>>> hw
>>>> watchpoints on MIPS R6
>>>> git bisect good 66e74bdd51e617023fa2e79a807b704fb3eed8aa
>>>> # good: [f7cabc2dac8adf5986dbc700584bc3b8fe493d4d] MIPS: Loongson-3:
>>>> Adjust irq dispatch to speedup processing
>>>> git bisect good f7cabc2dac8adf5986dbc700584bc3b8fe493d4d
>>>> # bad: [4978c8477e96fb9e9d870d8f42328dcabf1a65e9] MIPS: Loongson-3: Set
>>>> cache flush handlers to cache_noop
>>>> git bisect bad 4978c8477e96fb9e9d870d8f42328dcabf1a65e9
>>>> # bad: [04a35922c1dac1b4864b8b366a37474e9e51d8c0] MIPS: Loongson: Add
>>>> Loongson-3A R2 basic support
>>>> git bisect bad 04a35922c1dac1b4864b8b366a37474e9e51d8c0
>>>> # first bad commit: [04a35922c1dac1b4864b8b366a37474e9e51d8c0] MIPS:
>>>> Loongson: Add Loongson-3A R2 basic support
>>>>
>>>
>>>
>>
>
>

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