Re: 2.6.25-rc1-sha1: WARNING: at lib/kref.c:43 kref_get+0x20/0x30()

From: Andrew Morton
Date: Mon Feb 18 2008 - 08:02:39 EST


On Fri, 15 Feb 2008 14:08:53 +0300 Alexey Dobriyan <adobriyan@xxxxx> wrote:

> Booting without SYSFS fills dmesg like this

Does the system normally boot without sysfs? Surprised.

> ------------[ cut here ]------------
> WARNING: at lib/kref.c:43 kref_get+0x20/0x30()
> Modules linked in: loop(+)
> Pid: 994, comm: modprobe Tainted: G M 2.6.25-rc1 #6
>
> Call Trace:
> [<ffffffff802317f4>] warn_on_slowpath+0x64/0x90
> [<ffffffff8028db08>] init_object+0x88/0xa0
> [<ffffffff8028f55e>] __slab_alloc+0xbe/0x550
> [<ffffffff8031aa28>] kvasprintf+0x58/0x90
> [<ffffffff8031874c>] vsnprintf+0x33c/0x6e0
> [<ffffffff8031aa41>] kvasprintf+0x71/0x90
> [<ffffffff8022c597>] hrtick_set+0x77/0x140
> [<ffffffff80314860>] kref_get+0x20/0x30
> [<ffffffff80313932>] kobject_get+0x12/0x20
> [<ffffffff803139f9>] kobject_add_internal+0x49/0xf0
> [<ffffffff80313bb3>] kobject_add_varg+0x73/0x80
> [<ffffffff80313fa4>] kobject_add+0x54/0x80
> [<ffffffff8028ec53>] check_object+0x103/0x230
> [<ffffffff8028db08>] init_object+0x88/0xa0
> [<ffffffff80313744>] kobject_create+0x14/0x40
> [<ffffffff8028fbd3>] kmem_cache_alloc+0xd3/0xe0
> [<ffffffff803136b4>] kobject_init+0x34/0xb0
> [<ffffffff8031375b>] kobject_create+0x2b/0x40
> [<ffffffff8031400c>] kobject_create_and_add+0x3c/0x80
> [<ffffffff8025e137>] load_module+0x1847/0x1970
> [<ffffffff80288800>] alloc_pages_current+0x0/0x90
> [<ffffffff8025e2c2>] sys_init_module+0x62/0x1a0
>

Is this a regression?
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