Re: 2.6.21-rc6-mm1 ima "BUG: held lock freed!"

Joseph Fannin
2007-04-10T11:29:47Z

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On Sun, Apr 08, 2007 at 02:35:59PM -0700, Andrew Morton wrote:
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc6/2.6.21-rc6-mm1/
>
I'm seeing this while booting:

ima (ima_init): No TPM chip found(rc = -19), activating TPM-bypass!

=========================
[ BUG: held lock freed! ]
-------------------------
swapper/1 is freeing memory c04c7660-c04c76a3, with a lock still held there!
(ima_queue_lock){--..}, at: [<c0202710>] ima_create_htable+0x10/0x90
1 lock held by swapper/1:
#0: (ima_queue_lock){--..}, at: [<c0202710>] ima_create_htable+0x10/0x90

stack backtrace:
[<c0105959>] dump_trace+0x1d9/0x210
[<c01059aa>] show_trace_log_lvl+0x1a/0x30
[<c0106612>] show_trace+0x12/0x20
[<c01066d6>] dump_stack+0x16/0x20
[<c014fd3a>] debug_check_no_locks_freed+0x17a/0x180
[<c014cdbf>] debug_mutex_init+0x1f/0x50
[<c0145451>] __mutex_init+0x41/0x50
[<c020277d>] ima_create_htable+0x7d/0x90
[<c020286f>] ima_init+0x3f/0x270
[<c051b765>] init_evm+0x1f5/0x250
[<c05015d2>] kernel_init+0x132/0x320
[<c010532f>] kernel_thread_helper+0x7/0x18
=======================

I saw this in -rc5-mm4 also.

I couldn't find a contact address in MAINTAINERS, so I've CC'd the
two authors listed on top of ima_create_htable.c , as well as the
first submitter of the IMA stuff I found in my LKML archive.

As an aside, this computer does have (some sort of) TPM chip, but
the driver is built as a module, and not loaded at this point (not a
worry for me, I don't intend to use it).

--
Joseph Fannin
jfannin@gmail.com || jhf@columbus.rr.com

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