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Differential D4712 Diff 22803 head/sys/i386/i386/minidump_machdep.c

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head/sys/i386/i386/minidump_machdep.c

Show First 20 Lines • Show All 239 Lines • ▼ Show 20 Lines while (bits) {
dump_drop_page(pa); dump_drop_page(pa);
} }
bits &= ~(1ul << bit); bits &= ~(1ul << bit);
} }
} }
dumpsize += PAGE_SIZE; dumpsize += PAGE_SIZE;
/* Determine dump offset on device. */ /* Determine dump offset on device. */
if (di->mediasize < SIZEOF_METADATA + dumpsize + sizeof(kdh) * 2) { if (di->mediasize < SIZEOF_METADATA + dumpsize + di->blocksize * 2 +
kerneldumpcrypto_dumpkeysize(di->kdc)) {
error = ENOSPC; error = ENOSPC;
goto fail; goto fail;
} }
dumplo = di->mediaoffset + di->mediasize - dumpsize; dumplo = di->mediaoffset + di->mediasize - dumpsize;
dumplo -= sizeof(kdh) * 2; dumplo -= di->blocksize * 2;
dumplo -= kerneldumpcrypto_dumpkeysize(di->kdc);
progress = dumpsize; progress = dumpsize;
/* Initialize kernel dump crypto. */
error = kerneldumpcrypto_init(di->kdc);
if (error)
goto fail;
/* 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 = vm_page_dump_size; mdhdr.bitmapsize = vm_page_dump_size;
mdhdr.ptesize = ptesize; mdhdr.ptesize = ptesize;
mdhdr.kernbase = KERNBASE; mdhdr.kernbase = KERNBASE;
#if defined(PAE) || defined(PAE_TABLES) #if defined(PAE) || defined(PAE_TABLES)
mdhdr.paemode = 1; mdhdr.paemode = 1;
#endif #endif
mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_I386_VERSION, dumpsize, di->blocksize); mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_I386_VERSION, dumpsize,
kerneldumpcrypto_dumpkeysize(di->kdc), di->blocksize);
printf("Physical memory: %ju MB\n", ptoa((uintmax_t)physmem) / 1048576); printf("Physical memory: %ju MB\n", ptoa((uintmax_t)physmem) / 1048576);
printf("Dumping %llu MB:", (long long)dumpsize >> 20); printf("Dumping %llu MB:", (long long)dumpsize >> 20);
/* Dump leader */ /* Dump leader */
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh)); error = dump_write_header(di, &kdh, 0, dumplo);
if (error) if (error)
goto fail; goto fail;
dumplo += sizeof(kdh); dumplo += di->blocksize;
/* Dump key */
error = dump_write_key(di, 0, dumplo);
if (error)
goto fail;
dumplo += kerneldumpcrypto_dumpkeysize(di->kdc);
/* Dump my header */ /* Dump my header */
bzero(&fakept, sizeof(fakept)); bzero(&fakept, sizeof(fakept));
bcopy(&mdhdr, &fakept, sizeof(mdhdr)); bcopy(&mdhdr, &fakept, sizeof(mdhdr));
error = blk_write(di, (char *)&fakept, 0, PAGE_SIZE); error = blk_write(di, (char *)&fakept, 0, PAGE_SIZE);
if (error) if (error)
goto fail; goto fail;
/* Dump msgbuf up front */ /* Dump msgbuf up front */
▲ Show 20 Lines • Show All 57 Lines • ▼ Show 20 Lines for (i = 0; i < vm_page_dump_size / sizeof(*vm_page_dump); i++) {
} }
} }
error = blk_flush(di); error = blk_flush(di);
if (error) if (error)
goto fail; goto fail;
/* Dump trailer */ /* Dump trailer */
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh)); error = dump_write_header(di, &kdh, 0, dumplo);
if (error) if (error)
goto fail; goto fail;
dumplo += sizeof(kdh); dumplo += di->blocksize;
/* Signal completion, signoff and exit stage left. */ /* Signal completion, signoff and exit stage left. */
dump_write(di, NULL, 0, 0, 0); dump_write(di, NULL, 0, 0, 0);
printf("\nDump complete\n"); printf("\nDump complete\n");
return (0); return (0);
fail: fail:
if (error < 0) if (error < 0)
Show All 33 Lines