Re: 2.6.21-rc7-mm2 crash: Eeek! page_mapcount(page) went negative! (-1)

On Wed, May 02, 2007 at 12:10:00AM -0700, Andrew Morton wrote:

On Wed, 02 May 2007 09:01:22 +0200 Tilman Schmidt [off-list ref] wrote:

quoted

Am 30.04.2007 21:46 schrieb Andrew Morton:

quoted

Not really - everything's tangled up.  A bisection search on the
2.6.21-rc7-mm2 driver tree would be the best bet.

And the winner is:

gregkh-driver-driver-core-make-uevent-environment-available-in-uevent-file.patch

Reverting only that from 2.6.21-rc7-mm2 gives me a working kernel
again.

cripes.

+static ssize_t show_uevent(struct device *dev, struct device_attribute *attr,
+                          char *buf)
+{
+       struct kobject *top_kobj;
+       struct kset *kset;
+       char *envp[32];
+       char data[PAGE_SIZE];

That won't work too well with 4k stacks.

Oh crap.  Yeah, that's not nice.

Who's reviewing this stuff?  The patch headers indicate that no mailing list was
cc'ed?

Kay and I did this, sorry, it should have been cc:ed to lkml.

I'll go fix it up now...

thanks,

greg k-h

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