Goat Simulator 3 draws a triangle list whose indices are all 0xffffffff
with primitive restart off. Each fetch past a descriptor's records reads
zeros (out-of-bounds select 0 or 1), but the zero-padded vertex copies
were sized to the highest index: 160 GiB, which vkAllocateMemory refused.
When the highest index is at least 64Ki vertices past the largest
per-vertex record count, the draw now uses a copy of its indices with
every index past that count moved to it. Each attribute reads zeros
there as at the original index; only the vertex index the shader sees
changes, so indices closer to the records are left as they are.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
std::random_device in libstdc++ reads RDSEED on x86 Linux. On an AMD
EPYC 9V45 (Zen 5) CI runner its 32-bit results repeat about 130 times
in 65536 draws, so guest_posix_random fails. libc now exports
HostEntropy_nid_no_patch, which uses getentropy (rand_s on Windows) and
throws when the OS cannot provide entropy. arc4random, arc4random_buf,
sceRandomGetRandomNumber, /dev/random and /dev/urandom reads,
std::_Random_device and sceKernelUuidCreate use it, and the arc4random
and random device TechnicalDebt entries say so.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A title creating a socket with sceNetSocket sets its options with the BSD
setsockopt, which looked the descriptor up only among libkernel's own
sockets and returned EBADF. libSceNet now registers an option setter with
libkernel, as it does for close and select, and accepts SO_REUSEADDR,
SO_BROADCAST, SO_SNDBUF and SO_RCVBUF like libkernel's own sockets.
PPSA01289 (Sackboy: A Big Adventure) sets SO_BROADCAST on its UDP P2P
socket this way in UIpNetDriver::InitBase. The failure made every listen
fail, and the engine travelled back to its default map with ?closed,
reloading it about every two seconds behind the loading screen.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A libSceNet socket is a kernel descriptor on the console, so titles close it
with close(). libSceNet keeps its sockets in its own table, and libkernel's
close passed their numbers to the CRT, which reported an invalid parameter
and left the socket open. libSceNet now registers a closer with libkernel,
as it registers its poller for select. PPSA01289 (Sackboy: A Big Adventure)
closes its P2P socket this way each time it tears its network session down,
leaking one open socket per attempt.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
With the f32 denormal field of FLOAT_MODE set to keep, v_cmp_X_f32 and
v_cmpx_X_f32 read a denormal operand as zero: NVIDIA, RADV and lavapipe
all flush denormals in their float compares. Compare the operands as
sign-magnitude integers instead, with NaN handled apart. Compares with
flushed denormals are unchanged. This matches RDNA2 (gfx1036) on 256
operand pairs per opcode, with f32 denormals kept and flushed.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Tyler Westerberg
Dean
fma-rc
authurtabo-byte
ducloc080202
overlordxrz-source
winstrex
eljackjoestar-cmd
lorkydey
jdmagic
pushkarreddyy
Alex
Adrià
xXPBSXx