Date: Tue, 29 Jan 2019 17:13:56 -0800 From: Mark Millard <marklmi@yahoo.com> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Cc: Justin Hibbits <chmeeedalf@gmail.com>, Nathan Whitehorn <nwhitehorn@freebsd.org> Subject: PowerMac g5 "4 core" (system total): unload, load, boot gets: "moea64_enter: bpvo pool exhausted, 327680, 327680, 31457280" very early in the boot Message-ID: <A5898726-D02C-4CAB-9D6F-7829470D89FB@yahoo.com>
next in thread | raw e-mail | index | archive | help
[This presumes getting past the Translation map KASSERT
that I reported earlier, for example by using a non-debug
kernel build. Also I've established a context with usefdt=3D1
implicitly enabled and I've seen the below with both the
old and modern VM_MAX_KERNEL_ADDRESS value in place.]
If at the loader prompt for the G4 "4 core" I:
unload
load /boot/kernel/kernel
boot
or:
unload
boot /boot/kernel/kernel
the following routine's panic happens and reports:
moea64_enter: bpvo pool exhausted, 327680, 327680, 31457280
The routine is:
static struct pvo_entry *
alloc_pvo_entry(int bootstrap)
{ =20
struct pvo_entry *pvo;
=20
if (!moea64_initialized || bootstrap) {
if (moea64_bpvo_pool_index >=3D moea64_bpvo_pool_size) {
panic("moea64_enter: bpvo pool exhausted, %d, =
%d, %zd",
moea64_bpvo_pool_index, =
moea64_bpvo_pool_size,
moea64_bpvo_pool_size * sizeof(struct =
pvo_entry));
}
pvo =3D &moea64_bpvo_pool[
atomic_fetchadd_int(&moea64_bpvo_pool_index, 1)];
bzero(pvo, sizeof(*pvo));
pvo->pvo_vaddr =3D PVO_BOOTSTRAP;
} else {
pvo =3D uma_zalloc(moea64_pvo_zone, M_NOWAIT);
bzero(pvo, sizeof(*pvo));
}
return (pvo);
}
Such things make switching kernels from the loader prompt
problematical. That in turn makes gathering evidence for
other boot issues messier.
For reference (from a picture of the screen):
kdb_backtrace+0x68
vpanic+0x258
panic+0x3c
alloc_pvo_entry+0xe4
moea64_kenter_attr+0x44
moea64_late_bootstrap+0x3f4
moeas64_bootstrap_native+0x20c
pmap_bootstrap+0xc8
powerpc_init+0x440
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?A5898726-D02C-4CAB-9D6F-7829470D89FB>