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Differential D31885 Diff 94968 sys/mips/mips/minidump_machdep.c

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sys/mips/mips/minidump_machdep.c

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#include <machine/minidump.h> #include <machine/minidump.h>
#include <machine/cache.h> #include <machine/cache.h>
CTASSERT(sizeof(struct kerneldumpheader) == 512); CTASSERT(sizeof(struct kerneldumpheader) == 512);
static struct kerneldumpheader kdh; static struct kerneldumpheader kdh;
/* Handle chunked writes. */ /* Handle chunked writes. */
static uint64_t counter, progress, dumpsize; static uint64_t dumpsize;
/* Just auxiliary bufffer */ /* Just auxiliary bufffer */
static char tmpbuffer[PAGE_SIZE] __aligned(sizeof(uint64_t)); static char tmpbuffer[PAGE_SIZE] __aligned(sizeof(uint64_t));
extern pd_entry_t *kernel_segmap; extern pd_entry_t *kernel_segmap;
static struct {
int min_per;
int max_per;
int visited;
} progress_track[10] = {
{ 0, 10, 0},
{ 10, 20, 0},
{ 20, 30, 0},
{ 30, 40, 0},
{ 40, 50, 0},
{ 50, 60, 0},
{ 60, 70, 0},
{ 70, 80, 0},
{ 80, 90, 0},
{ 90, 100, 0}
};
static void
report_progress(uint64_t progress, uint64_t dumpsize)
{
int sofar, i;
sofar = 100 - ((progress * 100) / dumpsize);
for (i = 0; i < nitems(progress_track); i++) {
if (sofar < progress_track[i].min_per ||
sofar > progress_track[i].max_per)
continue;
if (progress_track[i].visited)
return;
progress_track[i].visited = 1;
printf("..%d%%", sofar);
return;
}
}
static int static int
write_buffer(struct dumperinfo *di, char *ptr, size_t sz) write_buffer(struct dumperinfo *di, char *ptr, size_t sz)
{ {
size_t len; size_t len;
int error, c; int error, c;
u_int maxdumpsz; u_int maxdumpsz;
maxdumpsz = di->maxiosize; maxdumpsz = di->maxiosize;
if (maxdumpsz == 0) /* seatbelt */ if (maxdumpsz == 0) /* seatbelt */
maxdumpsz = PAGE_SIZE; maxdumpsz = PAGE_SIZE;
error = 0; error = 0;
while (sz) { while (sz) {
len = min(maxdumpsz, sz); len = min(maxdumpsz, sz);
counter += len;
progress -= len;
if (counter >> 22) { dumpsys_pb_progress(len);
report_progress(progress, dumpsize);
counter &= (1<<22) - 1;
}
wdog_kern_pat(WD_LASTVAL); wdog_kern_pat(WD_LASTVAL);
if (ptr) { if (ptr) {
error = dump_append(di, ptr, 0, len); error = dump_append(di, ptr, 0, len);
if (error) if (error)
return (error); return (error);
ptr += len; ptr += len;
sz -= len; sz -= len;
Show All 24 Linesminidumpsys(struct dumperinfo *di)
vm_offset_t va; vm_offset_t va;
pt_entry_t *pte; pt_entry_t *pte;
int i, error; int i, error;
void *dump_va; void *dump_va;
/* Flush cache */ /* Flush cache */
mips_dcache_wbinv_all(); mips_dcache_wbinv_all();
counter = 0;
/* Walk page table pages, set bits in vm_page_dump */ /* Walk page table pages, set bits in vm_page_dump */
ptesize = 0; ptesize = 0;
for (va = VM_MIN_KERNEL_ADDRESS; va < kernel_vm_end; va += NBPDR) { for (va = VM_MIN_KERNEL_ADDRESS; va < kernel_vm_end; va += NBPDR) {
ptesize += PAGE_SIZE; ptesize += PAGE_SIZE;
pte = pmap_pte(kernel_pmap, va); pte = pmap_pte(kernel_pmap, va);
KASSERT(pte != NULL, ("pte for %jx is NULL", (uintmax_t)va)); KASSERT(pte != NULL, ("pte for %jx is NULL", (uintmax_t)va));
for (i = 0; i < NPTEPG; i++) { for (i = 0; i < NPTEPG; i++) {
Show All 23 Lines VM_PAGE_DUMP_FOREACH(pa) {
/* Clear out undumpable pages now if needed */ /* Clear out undumpable pages now if needed */
if (dump_page_is_dumpable(pa)) if (dump_page_is_dumpable(pa))
dumpsize += PAGE_SIZE; dumpsize += PAGE_SIZE;
else else
dump_drop_page(pa); dump_drop_page(pa);
} }
dumpsize += PAGE_SIZE; dumpsize += PAGE_SIZE;
progress = dumpsize; dumpsys_pb_init(dumpsize);
/* Initialize mdhdr */ /* Initialize mdhdr */
bzero(&mdhdr, sizeof(mdhdr)); bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC); strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION; mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size; mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages)); mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.ptesize = ptesize; mdhdr.ptesize = ptesize;
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