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Re: [PATCH] MIPS: Kernel hangs occasionally during boot.

To: Ralf Baechle <>
Subject: Re: [PATCH] MIPS: Kernel hangs occasionally during boot.
From: "Gleb O. Raiko" <>
Date: Wed, 09 Nov 2011 11:40:21 +0400
Cc: Al Cooper <>,,
In-reply-to: <>
Organization: NIISI RAN
References: <y> <> <>
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1
On 08.11.2011 21:55, Ralf Baechle wrote:
but we may need another hazard barrier to
replace back_to_back_c0_hazard().
Urgently. We need some ticks to wait until counter state machine has been updated. The amount of ticks may occasionally be the same as in case of back_to_back_hazard for some cpus. It's completely different for others, I sure. Original compare_change_hazard waits up to 12 ticks for r4k. While I don't think this amount should depend on irq_disable_hazard as old code assumes, we may still need 12 or so ticks for old cpus.

Author: Al Cooper <> Tue Nov 8 09:59:01 2011 -0500
Comitter: Ralf Baechle <> Tue Nov 8 16:52:51 2011 +0000
Commit: 9121470d99c029493bd55daa11607b398fe9aea3
Could you fix those links, it's broken after you moved git repo in?


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