From owner-freebsd-current  Fri Apr 19  1:43:12 2002
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Date:	Fri, 19 Apr 2002 10:38:32 +0200
To: current@freebsd.org
From: "Ben Stuyts (remove -spamtrap)" <ben@stuyts-spamtrap.nl>
Subject: A few lock order reversals
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Hi,

I updated my -current system yesterday, and I see a few lock order reversals.

This one happens during booting:

Apr 18 16:35:40 <0.2> terminus kernel: lock order reversal
Apr 18 16:35:40 <0.2> terminus kernel: 1st 0xc5ecbbb8 xl0 (network driver) 
@ /var/src/sys/pci/if_xl.c:1260
Apr 18 16:35:40 <0.2> terminus kernel: 2nd 0xc03590e0 allproc (allproc) @ 
/var/src/sys/kern/kern_fork.c:352

And these ones during normal use:

Apr 18 18:45:09 <0.2> terminus kernel: lock order reversal
Apr 18 18:45:09 <0.2> terminus kernel: 1st 0xc64332a4 KNOTE (UMA zone) @ 
/var/src/sys/vm/uma_core.c:527
Apr 18 18:45:09 <0.2> terminus kernel: 2nd 0xc082a724 PCPU KMAP ENTRY (UMA 
cpu) @ /var/src/sys/vm/uma_core.c:1301

Apr 19 03:01:12 <0.2> terminus kernel: lock order reversal
Apr 19 03:01:12 <0.2> terminus kernel: 1st 0xc64333e4 DIRHASH (UMA zone) @ 
/var/src/sys/vm/uma_core.c:527
Apr 19 03:01:12 <0.2> terminus kernel: 2nd 0xc082a724 PCPU KMAP ENTRY (UMA 
cpu) @ /var/src/sys/vm/uma_core.c:1301

If you need more information, kernel config, dmesg, etc, please let me know.

Kind regards,
Ben


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