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Message-ID: <a44ae5cd0609051249y767eed58ja1fe1b27858f5cd@mail.gmail.com>
Date: Tue, 5 Sep 2006 12:49:36 -0700
From: "Miles Lane" <miles.lane@...il.com>
To: "Andrew Morton" <akpm@...l.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
"Herbert Xu" <herbert@...dor.apana.org.au>,
linux1394-devel@...ts.sourceforge.net,
"Stefan Richter" <stefanr@...6.in-berlin.de>
Subject: Re: 2.6.18-rc5-mm1 + all hotfixes -- INFO: possible recursive locking detected
On 9/5/06, Andrew Morton <akpm@...l.org> wrote:
> On Tue, 5 Sep 2006 10:37:51 -0700
> "Miles Lane" <miles.lane@...il.com> wrote:
>
> > ieee1394: Node changed: 0-01:1023 -> 0-00:1023
> > ieee1394: Node changed: 0-02:1023 -> 0-01:1023
> > ieee1394: Node suspended: ID:BUS[0-00:1023] GUID[0080880002103eae]
> >
> > =============================================
> > [ INFO: possible recursive locking detected ]
> > 2.6.18-rc5-mm1 #2
> > ---------------------------------------------
> > knodemgrd_0/2321 is trying to acquire lock:
> > (&s->rwsem){----}, at: [<f8958897>] nodemgr_probe_ne+0x311/0x38d [ieee1394]
> >
> > but task is already holding lock:
> > (&s->rwsem){----}, at: [<f8959078>] nodemgr_host_thread+0x717/0x883 [ieee1394]
> >
> > other info that might help us debug this:
> > 2 locks held by knodemgrd_0/2321:
> > #0: (nodemgr_serialize){--..}, at: [<c11e76cd>]
> > mutex_lock_interruptible+0x1c/0x21
> > #1: (&s->rwsem){----}, at: [<f8959078>]
> > nodemgr_host_thread+0x717/0x883 [ieee1394]
> >
> > stack backtrace:
> > [<c1003c97>] dump_trace+0x69/0x1b7
> > [<c1003dfa>] show_trace_log_lvl+0x15/0x28
> > [<c10040f5>] show_trace+0x16/0x19
> > [<c1004110>] dump_stack+0x18/0x1d
> > [<c102f1e1>] __lock_acquire+0x7a2/0x9f8
> > [<c102f70a>] lock_acquire+0x56/0x74
> > [<c102b805>] down_write+0x27/0x41
> > [<f8958897>] nodemgr_probe_ne+0x311/0x38d [ieee1394]
> > [<f8959098>] nodemgr_host_thread+0x737/0x883 [ieee1394]
> > [<c1028c19>] kthread+0xaf/0xde
> > [<c100397b>] kernel_thread_helper+0x7/0x10
> > DWARF2 unwinder stuck at kernel_thread_helper+0x7/0x10
> >
> > Leftover inexact backtrace:
> >
> > [<c1003dfa>] show_trace_log_lvl+0x15/0x28
> > [<c10040f5>] show_trace+0x16/0x19
> > [<c1004110>] dump_stack+0x18/0x1d
> > [<c102f1e1>] __lock_acquire+0x7a2/0x9f8
> > [<c102f70a>] lock_acquire+0x56/0x74
> > [<c102b805>] down_write+0x27/0x41
> > [<f8958897>] nodemgr_probe_ne+0x311/0x38d [ieee1394]
> > [<f8959098>] nodemgr_host_thread+0x737/0x883 [ieee1394]
> > [<c1028c19>] kthread+0xaf/0xde
> > [<c100397b>] kernel_thread_helper+0x7/0x10
> > =======================
> > ieee1394: Node resumed: ID:BUS[0-00:1023] GUID[0080880002103eae]
> > ieee1394: Node changed: 0-00:1023 -> 0-01:1023
> > ieee1394: Node changed: 0-01:1023 -> 0-02:1023
>
> That's a 1394 glitch, possibly introduced by git-ieee1394.patch.
>
>
Hi Andrew,
I am having trouble with backing out the git-ieee1394 patches. Suggestions?
I am not knowledgable about the kernel code to fix broken patches.
# patch -p1 -R --dry-run < /home/miles/git-ieee1394.patch patching
file drivers/ieee1394/csr.c
patching file drivers/ieee1394/csr.h
patching file drivers/ieee1394/dma.c
patching file drivers/ieee1394/dma.h
patching file drivers/ieee1394/dv1394-private.h
patching file drivers/ieee1394/dv1394.c
patching file drivers/ieee1394/eth1394.c
Hunk #1 succeeded at 66 with fuzz 1 (offset -1 lines).
patching file drivers/ieee1394/highlevel.h
patching file drivers/ieee1394/hosts.c
Hunk #1 succeeded at 98 with fuzz 2 (offset 8 lines).
Hunk #2 FAILED at 113.
Hunk #3 FAILED at 123.
2 out of 3 hunks FAILED -- saving rejects to file drivers/ieee1394/hosts.c.rej
patching file drivers/ieee1394/hosts.h
Hunk #2 succeeded at 109 (offset -3 lines).
Hunk #3 succeeded at 157 (offset -3 lines).
Hunk #4 succeeded at 167 (offset -3 lines).
Hunk #5 succeeded at 193 (offset -3 lines).
patching file drivers/ieee1394/ieee1394-ioctl.h
patching file drivers/ieee1394/ieee1394.h
patching file drivers/ieee1394/ieee1394_core.c
Hunk #1 succeeded at 354 (offset -1 lines).
patching file drivers/ieee1394/ieee1394_core.h
Hunk #1 FAILED at 1.
Hunk #2 succeeded at 57 (offset -1 lines).
Hunk #3 succeeded at 79 (offset -1 lines).
Hunk #4 succeeded at 91 (offset -1 lines).
Hunk #5 succeeded at 203 (offset -1 lines).
Hunk #6 succeeded at 222 (offset -1 lines).
1 out of 6 hunks FAILED -- saving rejects to file
drivers/ieee1394/ieee1394_core.h.rej
patching file drivers/ieee1394/ieee1394_hotplug.h
patching file drivers/ieee1394/ieee1394_transactions.c
Hunk #1 succeeded at 13 with fuzz 2 (offset -1 lines).
Hunk #2 succeeded at 232 (offset 18 lines).
Hunk #3 succeeded at 279 (offset 18 lines).
patching file drivers/ieee1394/ieee1394_transactions.h
patching file drivers/ieee1394/ieee1394_types.h
Hunk #1 FAILED at 1.
Hunk #2 succeeded at 9 with fuzz 2 (offset -22 lines).
Hunk #3 FAILED at 32.
2 out of 3 hunks FAILED -- saving rejects to file
drivers/ieee1394/ieee1394_types.h.rej
patching file drivers/ieee1394/iso.c
patching file drivers/ieee1394/iso.h
patching file drivers/ieee1394/nodemgr.c
Hunk #4 succeeded at 418 (offset 10 lines).
Hunk #5 succeeded at 1260 (offset 9 lines).
Hunk #6 succeeded at 1268 (offset 9 lines).
Hunk #7 succeeded at 1309 (offset 9 lines).
Hunk #8 succeeded at 1501 (offset 9 lines).
Hunk #9 succeeded at 1631 (offset 9 lines).
Hunk #10 succeeded at 1676 (offset 9 lines).
Hunk #11 succeeded at 1707 (offset 9 lines).
Hunk #12 succeeded at 1773 (offset 9 lines).
Hunk #13 succeeded at 1815 (offset 9 lines).
patching file drivers/ieee1394/nodemgr.h
Hunk #5 succeeded at 105 with fuzz 1 (offset -1 lines).
Hunk #6 succeeded at 152 (offset -1 lines).
Hunk #7 succeeded at 169 (offset -1 lines).
patching file drivers/ieee1394/ohci1394.c
patching file drivers/ieee1394/raw1394-private.h
patching file drivers/ieee1394/raw1394.c
patching file drivers/ieee1394/sbp2.c
Hunk #1 succeeded at 367 (offset 11 lines).
Hunk #2 succeeded at 380 (offset 11 lines).
patching file drivers/ieee1394/video1394.c
# patch -p1 -R --dry-run < /home/miles/git-ieee1394-fixup.patch
patching file drivers/ieee1394/hosts.c
Hunk #1 succeeded at 100 with fuzz 2 (offset 10 lines).
Hunk #2 FAILED at 117.
Hunk #3 FAILED at 128.
2 out of 3 hunks FAILED -- saving rejects to file drivers/ieee1394/hosts.c.rej
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