Date: Thu, 04 Aug 2011 19:09:32 +0900 (JST) From: Kohji Okuno <okuno.kohji@jp.panasonic.com> To: kostikbel@gmail.com Cc: freebsd-current@freebsd.org, okuno.kohji@jp.panasonic.com Subject: Re: Bug: devfs is sure to have the bug. Message-ID: <20110804.190932.1142818667055047551.okuno.kohji@jp.panasonic.com> In-Reply-To: <20110804100426.GB17489@deviant.kiev.zoral.com.ua> References: <20110804095043.GA17489@deviant.kiev.zoral.com.ua> <20110804.185600.366306193153346256.okuno.kohji@jp.panasonic.com> <20110804100426.GB17489@deviant.kiev.zoral.com.ua>
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Hello Kostik,
>> > On Thu, Aug 04, 2011 at 11:41:39AM +0900, Kohji Okuno wrote:
>> >> But, now I'm using 8.1-RELEASE. May I have advice about 8.X ?
>> > Do you mean a patch for the stable/8 ? I believe it is enough to
>> > apply rev. 211628 to stable/8, then the patch I posted yesterday
>> > should be compilable.
>>
>> I'm sorry.
>> I need a patch for 8.1-RELEASE. Could you propose patch?
> Did you tried to apply the 211628 and the patch I mailed, to 8.1 ?
> I am not very interested in porting this stuff for such old system.
> On the other hand, I am unaware of large changes in devfs between
> 8.1 and latest stable.
No. Because the difference was large as you were poingint out, I did
not your patch. Now, I'm trying the following patch.
devfs_populate(struct devfs_mount *dm)
{
+#if 1
+ unsigned gen;
+ sx_assert(&dm->dm_lock, SX_XLOCKED);
+ gen = devfs_generation;
+ if (dm->dm_generation == gen)
+ return;
+ while (devfs_populate_loop(dm, 0))
+ continue;
+ dm->dm_generation = gen;
+#else
sx_assert(&dm->dm_lock, SX_XLOCKED);
if (dm->dm_generation == devfs_generation)
return;
while (devfs_populate_loop(dm, 0))
continue;
dm->dm_generation = devfs_generation;
+#endif
}
/*
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