files_lock deadlock?
From: Martin Wilck
Date: Tue Jul 19 2005 - 11:47:24 EST
Hello,
I apologize in advance if this is a dummy question. My web search turned
up nothing, so I'm trying it here.
We came across the following error message:
Kernelpanic - not syncing: fs/proc/
Generic.c:521: spin_lock(fs/file_table.c:ffffffff80420280)
Already locked by fs/file_table.c/204
This shows a locking problem with the files_lock on a UP kernel with
spinlock debugging enabled.
I noticed that files_lock is only protected with spin_lock()
(file_list_lock(), include/linux/fs.h). Is it possible that this should
be changed to spin_lock_irq()) or spin_lock_irqsave()? Or am I misssing
something obvious?
Thanks
Martin
--
Martin Wilck Phone: +49 5251 8 15113
Fujitsu Siemens Computers Fax: +49 5251 8 20409
Heinz-Nixdorf-Ring 1 mailto:Martin.Wilck@xxxxxxxxxxxxxxxxxxx
D-33106 Paderborn http://www.fujitsu-siemens.com/primergy
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