diff mbox

[rhashtable,INFO:,suspicious,RCU,usage.]

Message ID 20150402042950.GA5643@gondor.apana.org.au
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Herbert Xu April 2, 2015, 4:29 a.m. UTC
On Thu, Apr 02, 2015 at 12:11:35PM +0800, Fengguang Wu wrote:
> 
> Yes it is contained in next-20150401 which is bad:
> 
> # extra tests on tree/branch next/master
> git bisect  bad e954104e2b634b42811dad8d502cbf240f206df2  # 21:22      0-     60  Add linux-next specific files for 20150401
> 
> The dmesg there is
> 
> [    1.149409] test_firmware: interface ready
> [    1.150293] Running resizable hashtable tests...
> [    1.151209]   Adding 2048 keys
> [    1.152069] ------------[ cut here ]------------
> [    1.152978] WARNING: CPU: 0 PID: 1 at lib/rhashtable.c:409 rhashtable_insert_rehash+0x9d/0x1d0()

I see.  This is actually a completely different problem.

---8<---
test_rhashtable: Remove bogus max_size setting

Now that resizing is completely automatic, we need to remove
the max_size setting or the test will fail.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Comments

Thomas Graf April 2, 2015, 7:33 a.m. UTC | #1
On 04/02/15 at 12:29pm, Herbert Xu wrote:
> On Thu, Apr 02, 2015 at 12:11:35PM +0800, Fengguang Wu wrote:
> > 
> > Yes it is contained in next-20150401 which is bad:
> > 
> > # extra tests on tree/branch next/master
> > git bisect  bad e954104e2b634b42811dad8d502cbf240f206df2  # 21:22      0-     60  Add linux-next specific files for 20150401
> > 
> > The dmesg there is
> > 
> > [    1.149409] test_firmware: interface ready
> > [    1.150293] Running resizable hashtable tests...
> > [    1.151209]   Adding 2048 keys
> > [    1.152069] ------------[ cut here ]------------
> > [    1.152978] WARNING: CPU: 0 PID: 1 at lib/rhashtable.c:409 rhashtable_insert_rehash+0x9d/0x1d0()
> 
> I see.  This is actually a completely different problem.
> 
> ---8<---
> test_rhashtable: Remove bogus max_size setting
> 
> Now that resizing is completely automatic, we need to remove
> the max_size setting or the test will fail.
> 
> Reported-by: Fengguang Wu <fengguang.wu@intel.com>
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Acked-by: Thomas Graf <tgraf@suug.ch>

Had the same fix queued up in an upcoming series ;-)
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David Miller April 3, 2015, 7:09 p.m. UTC | #2
From: Thomas Graf <tgraf@suug.ch>
Date: Thu, 2 Apr 2015 08:33:56 +0100

> On 04/02/15 at 12:29pm, Herbert Xu wrote:
>> On Thu, Apr 02, 2015 at 12:11:35PM +0800, Fengguang Wu wrote:
>> > 
>> > Yes it is contained in next-20150401 which is bad:
>> > 
>> > # extra tests on tree/branch next/master
>> > git bisect  bad e954104e2b634b42811dad8d502cbf240f206df2  # 21:22      0-     60  Add linux-next specific files for 20150401
>> > 
>> > The dmesg there is
>> > 
>> > [    1.149409] test_firmware: interface ready
>> > [    1.150293] Running resizable hashtable tests...
>> > [    1.151209]   Adding 2048 keys
>> > [    1.152069] ------------[ cut here ]------------
>> > [    1.152978] WARNING: CPU: 0 PID: 1 at lib/rhashtable.c:409 rhashtable_insert_rehash+0x9d/0x1d0()
>> 
>> I see.  This is actually a completely different problem.
>> 
>> ---8<---
>> test_rhashtable: Remove bogus max_size setting
>> 
>> Now that resizing is completely automatic, we need to remove
>> the max_size setting or the test will fail.
>> 
>> Reported-by: Fengguang Wu <fengguang.wu@intel.com>
>> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
> 
> Acked-by: Thomas Graf <tgraf@suug.ch>
> 
> Had the same fix queued up in an upcoming series ;-)

Applied to net-next, thanks everyone.
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diff mbox

Patch

diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index a42a0d4..b295754 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -44,7 +44,6 @@  static const struct rhashtable_params test_rht_params = {
 	.key_offset = offsetof(struct test_obj, value),
 	.key_len = sizeof(int),
 	.hashfn = jhash,
-	.max_size = 2, /* we expand/shrink manually here */
 	.nulls_base = (3U << RHT_BASE_SHIFT),
 };