From: Eric Miao <eric.y.miao@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Andrea Righi <righi.andrea@gmail.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Krzysztof Helt <krzysztof.h1@poczta.fm>
Subject: [REGRESSION] commit 66c1ca0: {fbmem: fix fb_info->lock and mm->mmap_sem ...} causes Xfbdev not working
Date: Thu, 9 Apr 2009 19:36:24 +0800 [thread overview]
Message-ID: <f17812d70904090436kd03744brca4a4bc4b85bba8@mail.gmail.com> (raw)
This happens on my Marvell PXA310-based Littleton platform with
Angstrom Distribution. The offending paths are many:
FBIOPUT_VSCREENINFO:
lock_fb_info()
--> fb_set_var()
--> fb_notifier_call_chain() [FBINFO_MISC_USEREVENT]
--> fbcon_event_notifier() [FB_EVENT_MODE_CHANGE]
--> lock_fb_info()
OK, now hang. I'd suggest a clean fix to the original assumption of
circular locking
issue and revert this commit first.
--
Cheers
- eric
next reply other threads:[~2009-04-09 11:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 11:36 Eric Miao [this message]
2009-04-09 12:58 ` Andrea Righi
2009-04-10 20:21 ` Krzysztof Helt
2009-04-10 21:16 ` Andrew Morton
2009-04-10 22:05 ` Andrea Righi
2009-04-11 6:04 ` Krzysztof Helt
2009-04-11 9:00 ` Stefan Richter
2009-04-11 11:08 ` Andrea Righi
2009-04-11 15:04 ` Andrea Righi
2009-04-11 18:21 ` Andrew Morton
2009-04-11 19:32 ` Andrea Righi
2009-04-13 23:34 ` Andreas Schwab
[not found] ` <20090417182507.0bd85ccc.krzysztof.h1@poczta.fm>
2009-04-17 22:51 ` Andrea Righi
2009-04-10 17:40 ` Krzysztof Helt
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