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From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, Bruce Richardson <bruce.richardson@intel.com>,
	stephen@networkplumber.org, stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v4] eal: fix proc type auto detection
Date: Tue, 30 Jul 2019 10:19:38 +0100
Message-ID: <9e0f822f-4ee4-5ed3-30e7-b72dd57d010e@intel.com> (raw)
In-Reply-To: <3981792.lQiNHBRo4J@xps>

On 30-Jul-19 9:13 AM, Thomas Monjalon wrote:
> 24/07/2019 18:07, Anatoly Burakov:
>> Currently, primary process holds an exclusive lock on the config
>> file, thereby preventing other primaries from spinning up. However,
>> when the primary dies, the lock is no longer being held, even though
>> there might be other secondary processes still running.
>> The fix is two-fold. First of all, downgrade the primary process's
>> exclusive lock to a shared lock once we have it. Second of all,
>> also take out shared locks on the config from the secondaries. We
>> are using fcntl() locks, which get dropped when the file handle is
>> closed, so also remove the closure of config file handle.
>> Fixes: af75078fece3 ("first public release")
>> Cc: stable@dpdk.org
>> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
> This is not a new bug, and the fix is a bit complex,
> so it is deferred to 19.11 cycle. OK?

Yes, i'm OK with that.


  reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-23 13:19 [dpdk-dev] [PATCH] " Anatoly Burakov
2019-07-23 18:38 ` Stephen Hemminger
2019-07-24 10:04 ` [dpdk-dev] [PATCH v2] " Anatoly Burakov
2019-07-24 16:04   ` [dpdk-dev] [PATCH v3] " Anatoly Burakov
2019-07-24 16:07     ` [dpdk-dev] [PATCH v4] " Anatoly Burakov
2019-07-30  8:13       ` Thomas Monjalon
2019-07-30  9:19         ` Burakov, Anatoly [this message]
2019-08-12 10:03       ` David Marchand
2019-08-12 10:21         ` Van Haaren, Harry
2019-08-12 13:30           ` Burakov, Anatoly
2019-08-12 13:31         ` Burakov, Anatoly
2019-10-24 16:07         ` Burakov, Anatoly
2019-10-27 19:41           ` David Marchand

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