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Block cam hardware interrupts at splvm(). Controller drivers may

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perform malloc(NO_WAIT) and free operations that could touch the
page queues.

Noticed by:	Tor Egge <tegge@FreeBSd.org>
This commit is contained in:
Justin T. Gibbs 1999-03-05 23:39:02 +00:00
parent da925f6c0f
commit c07760c6a4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=44509
1 changed files with 4 additions and 4 deletions
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8
sys/i386/isa/ipl_funcs.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: ipl_funcs.c,v 1.13 1998/02/01 22:04:58 bde Exp $
* $Id: ipl_funcs.c,v 1.14 1998/12/07 21:58:22 archie Exp $
*/
#include <sys/types.h>
@ -87,7 +87,7 @@ GENSPL(splsofttty, cpl |= SWI_TTY_MASK)
GENSPL(splsoftvm, cpl |= SWI_VM_MASK)
GENSPL(splstatclock, cpl |= stat_imask)
GENSPL(spltty, cpl |= tty_imask)
GENSPL(splvm, cpl |= net_imask | bio_imask)
GENSPL(splvm, cpl |= net_imask | bio_imask | cam_imask)
void
spl0(void)
@ -248,7 +248,7 @@ GENSPL(splsofttty, |=, SWI_TTY_MASK, 12)
GENSPL(splsoftvm, |=, SWI_VM_MASK, 16)
GENSPL(splstatclock, |=, stat_imask, 13)
GENSPL(spltty, |=, tty_imask, 14)
GENSPL(splvm, |=, net_imask | bio_imask, 15)
GENSPL(splvm, |=, net_imask | bio_imask | cam_imask, 15)
#else /* INTR_SPL */
@ -285,7 +285,7 @@ GENSPL(splsofttty, cpl |= SWI_TTY_MASK)
GENSPL(splsoftvm, cpl |= SWI_VM_MASK)
GENSPL(splstatclock, cpl |= stat_imask)
GENSPL(spltty, cpl |= tty_imask)
GENSPL(splvm, cpl |= net_imask | bio_imask)
GENSPL(splvm, cpl |= net_imask | bio_imask | cam_imask)
#endif /* INTR_SPL */