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List:       freebsd-current
Subject:    Re: r323412: Panic on boot (slab->us_keg == keg)
From:       Raphael Kubo da Costa <rakuco () FreeBSD ! org>
Date:       2017-09-11 19:05:35
Message-ID: 86mv6112f4.fsf () orwell
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Raphael Kubo da Costa <rakuco@FreeBSD.org> writes:

> "Andrey V. Elsukov" <bu7cher@yandex.ru> writes:
>
>> On 11.09.2017 15:23, Andrey V. Elsukov wrote:
>>
>>> --- trap 0xc, rip = 0xffffffff80d84870, rsp = 0xffffffff82193970, rbp =
>>> 0xffffffff821939b0 ---
>>> zone_import() at zone_import+0x110/frame 0xffffffff821939b0
>>> zone_alloc_item() at zone_alloc_item+0x36/frame 0xffffffff821939f0
>>> uma_startup() at uma_startup+0x1d0/frame 0xffffffff82193ae0
>>> vm_page_startup() at vm_page_startup+0x34e/frame 0xffffffff82193b30
>>> vm_mem_init() at vm_mem_init+0x1a/frame 0xffffffff82193b50
>>> mi_startup() at mi_startup+0x9c/frame 0xffffffff82193b70
>>> btext() at btext+0x2c
>>> Uptime: 1s
>>
>> I bisected revisions, and the last working is r322988.
>
> [...]
>
>> Also I determined that it can successfully boot with disabled
>> hyper-threading.
>
> Did you mistype the revision number? r322988 is "rtwn(4): some initial
> preparations for (basic) VHT support" by avos@.

Sorry for the brain fart. I can confirm that reverting r322989 ("Drop
CACHE_LINE_SIZE to 64 bytes on x86") here on top of r323412 allows the
boot to proceed here.
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