diff options
Diffstat (limited to 'sys')
-rw-r--r-- | sys/vm/vm_page.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index 69d3ac2..e70ca3f 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -108,6 +108,7 @@ __FBSDID("$FreeBSD$"); #include <sys/kernel.h> #include <sys/limits.h> #include <sys/malloc.h> +#include <sys/msgbuf.h> #include <sys/mutex.h> #include <sys/proc.h> #include <sys/sysctl.h> @@ -375,6 +376,19 @@ vm_page_startup(vm_offset_t vaddr) new_end + vm_page_dump_size, VM_PROT_READ | VM_PROT_WRITE); bzero((void *)vm_page_dump, vm_page_dump_size); #endif +#ifdef __amd64__ + /* + * Request that the physical pages underlying the message buffer be + * included in a crash dump. Since the message buffer is accessed + * through the direct map, they are not automatically included. + */ + pa = DMAP_TO_PHYS((vm_offset_t)msgbufp->msg_ptr); + last_pa = pa + round_page(MSGBUF_SIZE); + while (pa < last_pa) { + dump_add_page(pa); + pa += PAGE_SIZE; + } +#endif /* * Compute the number of pages of memory that will be available for * use (taking into account the overhead of a page structure per |