Date: Sun, 11 Jun 2000 00:19:21 -0700 (PDT) From: Bruce Evans <bde@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern subr_bus.c Message-ID: <200006110719.AAA82776@freefall.freebsd.org>
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bde 2000/06/11 00:19:21 PDT
Modified files:
sys/kern subr_bus.c
Log:
Fixed allocation of unit numbers. Allocate the amount of space actually
required (rounded up a little) instead of twice the previous amount (or
a fixed amount for the first allocation).
The bug caused memory corruption when a new unit number for a devclass
was more than about twice the previous maximum one (or more than 3 for
the first one), so it corrupted memory (which happened to be the atkbdc
port resource list) in the reporter's configuration with sio unit
numbers { 0, 25, 1, 2, ... }.
Reviewed by: dfr
Reported by: Leonid Lukiyanets <stalwar78@hotmail.com>
Revision Changes Path
1.67 +2 -3 src/sys/kern/subr_bus.c
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