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From: Thomas Graf <tgraf@suug.ch>
To: Meelis Roos <mroos@linux.ee>
Cc: sparclinux@vger.kernel.org,
	Linux Kernel list <linux-kernel@vger.kernel.org>,
	netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: 4.1 regression in resizable hashtable tests
Date: Fri, 17 Jul 2015 08:04:56 +0000	[thread overview]
Message-ID: <20150717080456.GA13814@pox.localdomain> (raw)
In-Reply-To: <alpine.LRH.2.11.1507022208200.28236@math.ut.ee>

On 07/02/15 at 10:09pm, Meelis Roos wrote:
> [   33.425061] Running rhashtable test nelem=8, max_sizee536, shrinking=0
> [   33.425154] Test 00:
> [   33.534470]   Adding 50000 keys
> [   34.743553] Info: encountered resize
> [   34.743698] Info: encountered resize
> [   34.743838] Info: encountered resize
> [   34.744057] Info: encountered resize
> [   34.744430] Info: encountered resize
> [   34.745139] Info: encountered resize
> [   34.746441] Info: encountered resize
> [   34.749055] Info: encountered resize
> [   34.754469] Info: encountered resize
> [   34.764836] Info: encountered resize
> [   34.785696] Info: encountered resize
> [   34.827448] Info: encountered resize
> [   34.896936]   Traversal complete: countedI993, nelemsP000, entriesP000, table-jumps\x12
> [   34.897056] Test failed: Total count mismatch ^^^

I do see count mismatches as well due to the design of the walker
which restarts and thus sees certain entries multiple times.

Do you have this commit as well?

Author: Phil Sutter <phil@nwl.cc>
Date:   Mon Jul 6 15:51:20 2015 +0200

    rhashtable: fix for resize events during table walk

WARNING: multiple messages have this Message-ID (diff)
From: Thomas Graf <tgraf@suug.ch>
To: Meelis Roos <mroos@linux.ee>
Cc: sparclinux@vger.kernel.org,
	Linux Kernel list <linux-kernel@vger.kernel.org>,
	netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: 4.1 regression in resizable hashtable tests
Date: Fri, 17 Jul 2015 10:04:56 +0200	[thread overview]
Message-ID: <20150717080456.GA13814@pox.localdomain> (raw)
In-Reply-To: <alpine.LRH.2.11.1507022208200.28236@math.ut.ee>

On 07/02/15 at 10:09pm, Meelis Roos wrote:
> [   33.425061] Running rhashtable test nelem=8, max_size=65536, shrinking=0
> [   33.425154] Test 00:
> [   33.534470]   Adding 50000 keys
> [   34.743553] Info: encountered resize
> [   34.743698] Info: encountered resize
> [   34.743838] Info: encountered resize
> [   34.744057] Info: encountered resize
> [   34.744430] Info: encountered resize
> [   34.745139] Info: encountered resize
> [   34.746441] Info: encountered resize
> [   34.749055] Info: encountered resize
> [   34.754469] Info: encountered resize
> [   34.764836] Info: encountered resize
> [   34.785696] Info: encountered resize
> [   34.827448] Info: encountered resize
> [   34.896936]   Traversal complete: counted=49993, nelems=50000, entries=50000, table-jumps=12
> [   34.897056] Test failed: Total count mismatch ^^^

I do see count mismatches as well due to the design of the walker
which restarts and thus sees certain entries multiple times.

Do you have this commit as well?

Author: Phil Sutter <phil@nwl.cc>
Date:   Mon Jul 6 15:51:20 2015 +0200

    rhashtable: fix for resize events during table walk

  reply	other threads:[~2015-07-17  8:04 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-01 10:21 4.1 regression in resizable hashtable tests Meelis Roos
2015-07-01 10:21 ` Meelis Roos
2015-07-02 12:31 ` Thomas Graf
2015-07-02 12:31   ` Thomas Graf
2015-07-02 19:09   ` Meelis Roos
2015-07-02 19:09     ` Meelis Roos
2015-07-17  8:04     ` Thomas Graf [this message]
2015-07-17  8:04       ` Thomas Graf
2015-07-17 10:26       ` Phil Sutter
2015-07-17 10:26         ` Phil Sutter
2015-07-17 10:29         ` Phil Sutter
2015-07-17 10:29           ` Phil Sutter
2015-07-17 10:31         ` Thomas Graf
2015-07-17 10:31           ` Thomas Graf

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