From: John Richard Moser <nigelenki@comcast.net>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: BUG in 2.6.18.1?
Date: Sun, 15 Oct 2006 20:03:24 -0400 [thread overview]
Message-ID: <4532CC4C.6030005@comcast.net> (raw)
In-Reply-To: <4532BBDF.9010800@lwfinger.net>
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Larry Finger wrote:
> Running 2.6.18.1, I got the following warning in my log:
>
> Oct 15 16:24:38 larrylap kernel: BUG: warning at
> kernel/lockdep.c:565/print_infinite_recursion_bug()
> Oct 15 16:24:38 larrylap kernel: [<c0103b3f>]
> show_trace_log_lvl+0x1af/0x1d0
> Oct 15 16:24:38 larrylap kernel: [<c0104f4b>] show_trace+0x1b/0x20
> Oct 15 16:24:38 larrylap kernel: [<c0104f76>] dump_stack+0x26/0x30
> Oct 15 16:24:38 larrylap kernel: [<c0131099>]
> print_infinite_recursion_bug+0x49/0x50
> Oct 15 16:24:38 larrylap kernel: [<c01311d5>]
> find_usage_backwards+0x65/0xd0
> Oct 15 16:24:38 larrylap kernel: [<c0131210>]
> find_usage_backwards+0xa0/0xd0
> Oct 15 16:24:38 larrylap kernel: [<c0131210>]
> find_usage_backwards+0xa0/0xd0
> Oct 15 16:24:38 larrylap kernel: [<c0131210>]
> find_usage_backwards+0xa0/0xd0
> Oct 15 16:24:38 larrylap kernel: [<c0131210>]
> find_usage_backwards+0xa0/0xd0
> Oct 15 16:24:38 larrylap kernel: [<c0131210>]
> find_usage_backwards+0xa0/0xd0
> Oct 15 16:24:38 larrylap kernel: [<c0131210>]
> find_usage_backwards+0xa0/0xd0
....
Hmmm... 21 is infinite? Interesting.
I find that it would be interesting to me personally if the kernel was
smart enough to spit out something like:
Oct 15 16:24:38 larrylap kernel: [<c0131210>] find_[...]+0xa0/0xd0
[21 times]
(of course, with find_usage_backwards spelled out)
After all, what if it's practical that a specific recursion would run
3000 times and it gets caught at 5000 times? ("f**king bad design")
Just a pet peeve of mine though.
- --
We will enslave their women, eat their children and rape their
cattle!
-- Bosc, Evil alien overlord from the fifth dimension
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next prev parent reply other threads:[~2006-10-16 0:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-15 22:53 BUG in 2.6.18.1? Larry Finger
2006-10-16 0:03 ` John Richard Moser [this message]
2006-10-17 12:25 ` Srinivasa Ds
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