Displaying 3 results from an estimated 3 matches for "wire_count".
2008 Nov 24
1
RELENG_7 panic under load: vm_page_unwire: invalid wire count: 0
Box with fresh RELENG_7 panic under heavy network load (more than 50k connections).
This panics seems to be senfile(2) related, because when sendfile disabled in nginx, I can't reproduce the problem.
Backtrace in all cases like this:
# kgdb kernel /spool/crash/vmcore.1
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General
2003 Aug 22
3
PAE removal patch for testing
...< UPAGES; i++) {
+ ptek = (unsigned *) vtopte((vm_offset_t) up);
+
+ updateneeded = 0;
+ for(i=0;i<UPAGES;i++) {
/*
* Get a kernel stack page
*/
m = vm_page_grab(upobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
- ma[i] = m;
/*
* Wire the page
@@ -864,12 +886,26 @@
m->wire_count++;
cnt.v_wire_count++;
+ oldpte = *(ptek + i);
+ /*
+ * Enter the page into the kernel address space.
+ */
+ *(ptek + i) = VM_PAGE_TO_PHYS(m) | PG_RW | PG_V | pgeflag;
+ if (oldpte) {
+ if ((oldpte & PG_G) || (cpu_class > CPUCLASS_386)) {
+ invlpg((vm_offset_t) up + i * PAG...
2013 Jul 22
2
stopping amd causes a freeze
Occasionally stopping amd freezes my system. It's a rare occurrence,
and I haven't found a reliable way to reproduce it.
It's also a real freeze, so there's no way to get into the debugger
or grab a core dump. I only can perform the 4 seconds hard shutdown to
revive the system.
I run amd through sysutils/automounter, which is a scripting solution
that generates an amd.map file