fix(libkernel): give guest sockets ordinary descriptor numbers below FD_SETSIZE by MarcZX10 · Pull Request #4391 · boykopovar/AnyPS5

MarcZX10 · 2026-10-12T08:50:55Z

What

Fixes the socket descriptor overflow reported in #4366. Libkernel sockets, socket pairs, accepted sockets, and libSceNet sockets reserve ordinary host descriptor numbers from the shared descriptor table, keeping them within FD_SETSIZE while fewer than 1024 descriptors are open. Descriptor dispatch now checks socket-table membership; select handles libkernel sockets alongside the existing descriptor groups. The kqueue and file-event paths also identify sockets by table membership so the low-numbered descriptors work with current main.

Carries screamm's implementation commit 20378375b with its original author preserved. Integration changes update the setsockopt ownership check, return EBADF from fstat for a closed low-numbered socket descriptor, and route descriptor cleanup through the current equeue behavior. Socket fstat remains unsupported, as in the issue's proposed scope.

Tested

Linux, Debian 12, GCC 12.2, Release, Ninja, BUILD_TESTING=ON, configured from this rebased head on current main c13dc7e6b:

Built libkernel, libSceNet, libScePosixForWebKit and the focused socket/event test executables (148 Ninja steps).
CTest passed 10/10: guest_sce_net, guest_posix_filesystem, guest_socket_events, guest_poll, guest_select, guest_socket_pair, guest_dup, guest_kqueue, guest_socket_descriptors and guest_fstatfs.
python3 tools/check_conventions.py --base upstream/main passed.
git diff --check upstream/main...HEAD passed.

No Windows build or title run was performed on this head.

Checklist

LeandroLP23 · 2026-10-12T09:59:56Z

Windows run of this head (71b717ce5) merged onto current main (9aa5fd290): Windows 11 (26300), WinLibs GCC 15.2.0 r7, Release, full build including libs.

15 socket, file and network tests pass 3/3: guest_socket_descriptors, guest_poll, guest_dup, guest_socket_pair, guest_sce_net, guest_fstatfs, guest_posix_filesystem, guest_tcp, guest_udp, guest_aio, guest_aio_bad_descriptors, guest_resolver, guest_http, guest_http2, guest_http_response_header.
With the ten production files reverted to main, 7 of them fail: guest_socket_descriptors (line 77), guest_poll, guest_dup, guest_socket_pair, guest_sce_net, guest_posix_filesystem (line 113, errno 25) and guest_fstatfs (line 119). So the new cases exercise the change on Windows.
The whole non-AGC suite passes: 513/513 (ctest -E '^agc_' -j 4). The change touches no AGC code.
Titles, 60 s each:
- ProsperoTV (PPSA99003) and ProsperoRadio (PPSA99001) stop on main with poll: descriptor 4 / descriptor 3 is not a socket. With this change both get past poll and reach their lapy.elf probe, which needs a jailbroken environment.
- PSXS5 (PPSA97510) still stops on poll: descriptor 6 is not a socket, a descriptor that isn't a socket at all (fix(libkernel): poll pipe descriptors #3644, feat(libkernel): poll on file descriptors and Windows pipe read ends #3649).

Upstream skips the Windows job on PRs, so this is the first Windows run of this branch.

xXPBSXx · 2026-10-12T10:38:42Z

Windows test: head 71b717ce5 merged onto current main e7c70a2df (clean merge, no conflicts). Windows 10, MinGW GCC (WinLibs), Ninja Release, -j4: full build 0 errors; ctest with the filter guest_dup, guest_fstatfs, guest_poll, guest_posix_filesystem, guest_sce_net, guest_select, guest_socket_descriptors, guest_socket_pair (matched 7 tests): 7/7 passed; python tools/check_conventions.py --base upstream/main passed. I did not run the new tests against main without the change.

AI-assisted (Claude Code).

xXPBSXx · 2026-10-12T11:54:46Z

Two findings on head 71b717ce5.

1. It no longer merges onto current main (3d8ffeb27). sceKernelFcntl in Open.cpp conflicts with the FcntlArgumentOf rework, and main now has three more FirstDescriptor comparisons that this PR removes from the header, so a plain merge also fails to compile:

Open.cpp: sceKernelFcntl (d < GuestSockets::FirstDescriptor)
Udp.cpp: fcntl_nid_postfix and ioctl_nid_postfix
Stdio.cpp: the F_DUPFD branch of fcntl (non-Windows only)

I resolved these locally by testing GuestSockets::IsOpen(d) instead (and dropping the non-Windows range throw). Windows 10, GCC 15.2.0 (WinLibs r7), Release, full build 0 errors; guest_socket_descriptors, guest_socket_read_write, guest_socket_pair, guest_socket_events, guest_poll, guest_dup, guest_fstatfs, guest_posix_filesystem, guest_filesystem, guest_equeue_events, guest_tcp and guest_udp pass (12 of 12 in that filter). This is a local merge, not pushed.

2. The Mound (PPSA26223), 150 s each, observation only.

Head 71b717ce5 on its own base: no FATAL, no RtcNetworkThread fault; the title ran the whole 150 s and was stopped by the time limit. The Dying Light 2 (PPSA02262) on Windows: what stops it between conversion and its own startup #1794 stop (FD_SET with 0x10000005) is gone.
Head merged with main 3d8ffeb27 (resolution above): RtcNetworkThread is alive in the thread dump when the title aborts, and the abort is an unrelated GPU one (storage image access to depth/stencil surface ... is not implemented).

Palworld (PPSA23126) with the same merge (plus the three file/event export declarations from Rohan03x's branch) binds all imports, but aborts earlier in the shader recompiler (packed pixel ancillary input has an unsupported live use) before any EOS thread starts, so it does not show whether select is fixed there.

AI-assisted (Claude Code).

xXPBSXx · 2026-10-12T13:11:06Z

For anyone carrying this: the merge of head 71b717ce5 onto current main (0ef9dc928) is on my fork as one merge commit, https://github.com/xXPBSXx/AnyPS5/tree/fix/socket-descriptors-4391-on-main (9d6fa7c3f). Nothing was changed beyond resolving the conflicts:

Open.cpp: sceKernelFcntl keeps main's FcntlArgumentOf and tests !GuestSockets::IsOpen(d); sceKernelClose (new on main) tests IsOpen(d).
Udp.cpp: fcntl_nid_postfix and ioctl_nid_postfix test !GuestSockets::IsOpen(...); Stdio.cpp: the non-Windows F_DUPFD range throw is dropped (FirstDescriptor no longer exists).
TechnicalDebt.md: main's new send/sendto entry kept next to this PR's socket-number and poll entries.

Windows 10, GCC 15.2.0 (WinLibs r7), Release: full build 0 errors, 26 of 26 tests in the socket, poll, dup, fstatfs, file system, TCP/UDP and libSceNet filter pass. No title run on this exact merge.

AI-assisted (Claude Code).

xXPBSXx · 2026-10-12T13:26:26Z

Interaction of this PR with the other open descriptor PRs, from git merge-tree against the merge of this head with current main (9d6fa7c3f on my fork, see above); nothing was built for these combinations:

PR	Merges with `main`	Merges after this PR	Conflicting files
#3649 (poll on files, Windows pipe read ends)	yes	no	`Socket/src/Udp.cpp`, `tests/GuestPoll.cpp`, `TechnicalDebt.md`
#3644 (poll pipe descriptors)	no (`TechnicalDebt.md`)	no	`Socket/src/Udp.cpp`, `tests/GuestPoll.cpp`, `TechnicalDebt.md`
#4351 (fstat on a guest socket)	yes	no	`File/src/Stdio.cpp`, `Socket/include/SocketRuntime.hpp`, `TechnicalDebt.md`
#4053 (close guest sockets in `sceKernelClose`)	yes	yes	none

fix(libkernel): poll pipe descriptors #3644 and feat(libkernel): poll on file descriptors and Windows pipe read ends #3649 also conflict with each other in the same three files: both make poll accept non-socket descriptors, so only one of them can be merged first.
This PR makes poll throw for an open descriptor that is not a guest socket and fstat throw for a guest socket (TechnicalDebt.md), the two behaviours feat(libkernel): poll on file descriptors and Windows pipe read ends #3649/fix(libkernel): poll pipe descriptors #3644 and fix(libkernel): report socket status from fstat on a guest socket #4351 change. Whichever lands second needs the table-membership test (GuestSockets::IsOpen) instead of the FirstDescriptor range; the poll descriptor-below-the-socket-range check is gone here.

AI-assisted (Claude Code).

blawesom · 2026-10-12T14:36:30Z

Heads-up before review: this PR reworks the guest-socket descriptor scheme to ordinary numbers below FD_SETSIZE, but main landed the opposite direction this morning — 591e8ddad ("feat(libkernel): support fcntl on non-socket descriptors") and 01b7bb3e2 ("support ioctl on non-socket descriptors") route sockets through GuestSockets::FirstDescriptor (high descriptor numbers, membership by range check).

A plain rebase therefore isn't mechanical: every d >= GuestSockets::FirstDescriptor range check main added (in sceKernelClose, sceKernelFcntl, sceKernelIoctl, …) collides with this PR's GuestSockets::IsOpen(d) membership checks — the two schemes are mutually exclusive across the ~20 files this PR touches.

Options as I see them: either this PR is a deliberate counter-proposal to the FirstDescriptor scheme (in which case the maintainers should weigh the two designs before anyone spends rebase effort), or it predates awareness of the new scheme and wants reworking on top of it. Flagging so that's visible either way — happy to attempt the full semantic rebase if the ordinary-numbers design is the one that should win.

MarcZX10 · 2026-10-13T03:29:06Z

Rebased onto current main c13dc7e6b and pushed head e0ec0c809. The rebase keeps low-numbered socket descriptors and routes the new kqueue/file-event checks through GuestSockets::IsOpen, including the range checks called out above. The low-descriptor test setup and current main's pipe-poll behavior are both retained.

Linux Debian 12 / GCC 12.2 Release: built the affected libraries and focused test targets (148 Ninja steps); CTest passed 10/10, including guest_kqueue, guest_socket_descriptors, guest_socket_events, guest_poll, guest_select, guest_dup, guest_socket_pair, guest_sce_net, guest_posix_filesystem and guest_fstatfs. Conventions and git diff --check pass. I have not run Windows or a title on this head.

github-actions · 2026-10-13T03:40:45Z

Other open pull requests touch the same code. Merging one will break the other, or both implement the same thing. If this one builds on them, list them in Depends on.

Pull request	Conflicting files (lines on `main`)	Same exports	Same new files
#4525	`core/libs/prx/libkernel/Socket/src/Udp.cpp` `docs/dev/debt/libkernel.md` L140-142
#4585	`docs/dev/debt/libkernel.md` L126-128
#4719	`core/libs/prx/libkernel/File/src/Stdio.cpp` L726-732
#4754	`core/libs/prx/libkernel/Socket/src/Socket.cpp` L248-250
#4818	`core/libs/prx/libkernel/File/src/Stdio.cpp` L759-762
#4903	`core/libs/prx/libkernel/File/src/Stdio.cpp` L645-646, L807 `core/libs/prx/libkernel/Socket/include/SocketRuntime.hpp` L4, L17-18 `docs/dev/debt/libkernel.md` L140-142
#4908	`core/libs/prx/libkernel/Equeue/Equeue.cpp` L599-602
#4910	`core/libs/prx/libkernel/Equeue/Equeue.cpp` L596-597, L599-605 `core/libs/prx/libkernel/Equeue/src/Kqueue.cpp` L121-122, L138-142 `core/libs/prx/libkernel/Socket/include/SocketRuntime.hpp` L18 `core/libs/prx/libkernel/Socket/src/Udp.cpp` L539
#4929	`core/libs/prx/libkernel/File/src/Stdio.cpp` L643-646, L759-762

nicolasfalesy · 2026-10-13T04:16:09Z

Reran ProsperoLight (PPSA99002) on this head (e0ec0c809) on Linux (Arch, Release, relinked with --to-intel): 3 of 3 runs still abort, now with

what():  fcntl: descriptor 47 is neither a file, a directory, a pipe nor a character device

(41 in one run). strace shows the libSceNet socket now gets a low descriptor as intended (socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) = 46, fcntl(46, F_DUPFD_CLOEXEC, 0) = 47), and the guest's fcntl(47, F_GETFL) / fcntl(47, F_SETFL, O_NONBLOCK) reaches File::Fcntl, whose Linux Classify sees S_IFSOCK and throws. So for this title the remaining piece is fcntl F_GETFL/F_SETFL (O_NONBLOCK) on socket descriptors, routed through the socket table like the equeue checks. Happy to rerun once that's in, here or in a follow-up.

Tested with Claude Code assistance.

nicolasfalesy · 2026-10-13T04:30:00Z

Opened #4924 on top of this branch for the fcntl part (libSceNet registers a status control with libkernel, like its option setter). With it ProsperoLight gets past fcntl and stops next on poll: descriptor 47 is neither a socket nor a pipe.

nicolasfalesy · 2026-10-13T05:14:58Z

With #4924 (fcntl) and #4933 (poll) on top of this branch, ProsperoLight (PPSA99002) runs 3 of 3 times for 60 s on Linux and reaches its main screen ("Your PCs", Sunshine discovery running). So on Linux this branch plus those two clears every socket stop this title hits.

With libSceNet sockets on ordinary descriptor numbers (boykopovar#4391), a title that makes a libSceNet socket non-blocking with plain fcntl(F_GETFL) and fcntl(F_SETFL, O_NONBLOCK) reached File::Fcntl, whose classification throws for a socket. libSceNet now registers a status control with libkernel, like its option setter: F_GETFL returns O_RDWR with the socket's non-blocking flag, F_SETFL sets it through SO_NBIO, as fcntl already does for libkernel sockets. ProsperoLight (PPSA99002) stopped here on Linux. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017WeVmjnnPPKdxVTpr2Vjtw

With libSceNet sockets on ordinary descriptor numbers (boykopovar#4391), poll on a libSceNet socket threw "neither a socket nor a pipe": poll only knew libkernel sockets and pipes, while select already asks libSceNet through its poller. libSceNet now lends libkernel the host socket behind a descriptor, together with an owner that keeps it open, so poll puts it in the same WSAPoll or poll call as libkernel sockets. ProsperoLight (PPSA99002) stopped here on Linux and now reaches its PC list. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EvDbpwUPTa78oCAJqe7m9K

With libSceNet sockets on ordinary descriptor numbers (boykopovar#4391), a title that makes a libSceNet socket non-blocking with plain fcntl(F_GETFL) and fcntl(F_SETFL, O_NONBLOCK) reached File::Fcntl, whose classification throws for a socket. libSceNet now registers a status control with libkernel, like its option setter: F_GETFL returns O_RDWR with the socket's non-blocking flag, F_SETFL sets it through SO_NBIO, as fcntl already does for libkernel sockets. ProsperoLight (PPSA99002) stopped here on Linux. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017WeVmjnnPPKdxVTpr2Vjtw

With libSceNet sockets on ordinary descriptor numbers (boykopovar#4391), poll on a libSceNet socket threw "neither a socket nor a pipe": poll only knew libkernel sockets and pipes, while select already asks libSceNet through its poller. libSceNet now lends libkernel the host socket behind a descriptor, together with an owner that keeps it open, so poll puts it in the same WSAPoll or poll call as libkernel sockets. ProsperoLight (PPSA99002) stopped here on Linux and now reaches its PC list. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EvDbpwUPTa78oCAJqe7m9K

* feat(libkernel): implement sigsuspend on the pending-signal set (cherry picked from commit b3d850d) * docs(libkernel): record sigsuspend 32-signal mask limit (cherry picked from commit 38e2db3) * feat(libkernel): share pause wait loop and _sigprocmask restore in sigsuspend (cherry picked from commit 1ce5c2c) * feat(libkernel): EVFILT_VNODE on macOS through the host kqueue Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> (cherry picked from commit 84bb450) * feat(libkernel): implement mincore Implement mincore (+hFjyohmOU0) in libkernel following FreeBSD 11's sys_mincore (sys/vm/vm_mmap.c). Validate page alignment, return EFAULT for null vector, check range bounds and residency via sceKernelVirtualQuery, and report MINCORE_INCORE (1) for resident pages. Required by a Java 25 homebrew title. (cherry picked from commit 7781eda) * fix(libkernel): round mincore address down as FreeBSD does Follow FreeBSD 11's sys_mincore by rounding unaligned address down to page boundary rather than returning EINVAL. Update guest memory test and document unmodeled residency/referenced/modified bits in libkernel technical debt. (cherry picked from commit 3699eff) * fix(libkernel): follow kern_mincore order and report reserved pages as not resident Co-Authored-By: Claude <noreply@anthropic.com> (cherry picked from commit 2854d51) * feat(libc): add optional log timestamps (cherry picked from commit 2cc4999) * fix(libkernel): accept MSG_DONTWAIT in the socket send and receive calls send, sendto, sendmsg, recv, recvfrom and recvmsg failed with EOPNOTSUPP for MSG_DONTWAIT (0x80), so code that polls a blocking socket with it got an error on every call instead of its data or EWOULDBLOCK. FreeBSD 11.4 defines the flag in sys/sys/socket.h: #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ and soreceive_generic() (sys/kern/uipc_socket.c) treats it as a non-blocking socket for that one call: if ((so->so_state & SS_NBIO) || (flags & (MSG_DONTWAIT|MSG_NBIO))) { SOCKBUF_UNLOCK(&so->so_rcv); error = EWOULDBLOCK; goto release; On Linux and macOS the flag now maps to the host's MSG_DONTWAIT, next to MSG_PEEK on a receive and MSG_NOSIGNAL on a send. Winsock has no per-call non-blocking flag, so Windows keeps failing with EOPNOTSUPP for it; TechnicalDebt records that. Other flags still fail with EOPNOTSUPP. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> (cherry picked from commit 7afd889) * fix(libkernel): answer fcntl status flags on libSceNet sockets With libSceNet sockets on ordinary descriptor numbers (boykopovar#4391), a title that makes a libSceNet socket non-blocking with plain fcntl(F_GETFL) and fcntl(F_SETFL, O_NONBLOCK) reached File::Fcntl, whose classification throws for a socket. libSceNet now registers a status control with libkernel, like its option setter: F_GETFL returns O_RDWR with the socket's non-blocking flag, F_SETFL sets it through SO_NBIO, as fcntl already does for libkernel sockets. A homebrew title stopped here on Linux. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017WeVmjnnPPKdxVTpr2Vjtw (cherry picked from commit 5dcf28d) * fix(libc): preserve path services through process exit (cherry picked from commit 99ae2e8) * fix(memory): preserve process-owned services during exit (cherry picked from commit d50eed2) * fix(libkernel): keep host standard streams open on guest close Guest descriptors are host C runtime descriptors. Closing descriptor 0, 1 or 2 closed the host process's standard stream, and the runtime then gave that number to the next file opened anywhere in the process, including files libkernel opens itself, such as the APR reader's. The title's next close of the same number closed that file mid-read. close and sceKernelClose now fail with EBADF for descriptors 0 to 2 that were open when libkernel loaded, and leave them open. A standard descriptor that was not open at load can still be opened and closed by the guest. A title calls sceKernelClose(0) repeatedly while loading asset bundles, which made APR reads return 0 or a part of the requested bytes and raised UCRT invalid parameter reports from close. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> (cherry picked from commit 8029428) * fix(libkernel): poll libSceNet sockets with the host wait With libSceNet sockets on ordinary descriptor numbers (boykopovar#4391), poll on a libSceNet socket threw "neither a socket nor a pipe": poll only knew libkernel sockets and pipes, while select already asks libSceNet through its poller. libSceNet now lends libkernel the host socket behind a descriptor, together with an owner that keeps it open, so poll puts it in the same WSAPoll or poll call as libkernel sockets. A homebrew title stopped here on Linux and now reaches its PC list. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EvDbpwUPTa78oCAJqe7m9K (cherry picked from commit 62d8eea) * fix(libkernel): answer F_GETFD and F_SETFD on a guest socket fcntl on a guest socket handled F_GETFL and F_SETFL only and failed every other command with EINVAL, so libcurl's fcntl(fd, F_SETFD, FD_CLOEXEC) on a new socket failed (seen in a homebrew title, boykopovar#4796). Record FD_CLOEXEC per socket descriptor: F_SETFD sets or clears it, F_GETFD reads it, SOCK_CLOEXEC sets it at creation, and dup, dup2 and close start without it, as FreeBSD's kern_fcntl and kern_dup do. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> (cherry picked from commit 84aa234) * fix(libkernel): fail sceKernelMprotect over an unmapped range with EINVAL instead of aborting The allocation tracker threw a runtime_error (a hole in the protected range) from inside sceKernelMprotect, which terminated the title. mprotect already turned the exception into EINVAL. sceKernelMprotect and sceKernelMtypeprotect now check that the range is registered first and return EINVAL; the retype of direct mappings is skipped on failure. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> (cherry picked from commit 05ffb45) * fix(libkernel): fall back below a mapping hint with no room above it A mapping without MAP_FIXED treated its address as the lowest place it could go, and a hint at or above the end of the guest arena threw on the host. FreeBSD 11.4's vm_mmap_object places such mappings with vm_map_find_min, which takes the address as a hint only: it tries at or above it, then again from its minimum address. GuestArenaAllocateFromHint does the same in the arena: at or above the hint when it lies below the arena's end and a range fits there, otherwise from the arena's start. MapPlaced and the Windows mmap_aligned use it for hinted mappings; GuestArenaAllocateAtOrAbove keeps its meaning for the callers that need a range above an address. A homebrew title reserves its JIT range with sceKernelReserveVirtualRange and a hint near its own code, a host address above the arena here, and aborted with "mapping address hint is above the guest address space arena" when launching a 3DS title. (cherry picked from commit a016b4f) * docs(debt): note the fallback of mapping hints with no room above them (cherry picked from commit aca7a3a) * fix(libkernel): check every part of an mprotect range for pins before protecting the first Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> (cherry picked from commit 238fe1e) * fix(libkernel): give an inheriting thread its creator's priority Measured on a PS5 (firmware 13.60): a thread created with PTHREAD_INHERIT_SCHED, a null attribute or a default attribute runs at its creator's priority, whatever priority the attribute holds; with explicit scheduling it takes the attribute's priority. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> (cherry picked from commit 143eb6a) * fix(libkernel): convert local time with the host time zone sceKernelConvertUtcToLocaltime and sceKernelConvertLocaltimeToUtc returned the time unchanged while libc localtime follows the host zone, so a title that mixes them shows UTC as local time (boykopovar#5067). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017iLxaSz4qjmirfqKZdhVQk (cherry picked from commit 56c8f34) * fix(libkernel): report west_sec as seconds east of UTC A homebrew emulator documents that the console fills west_sec with the offset east of UTC despite the field's name. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017iLxaSz4qjmirfqKZdhVQk (cherry picked from commit ae7f5e3) * fix(libkernel): call tzset before reading the host zone offsets Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017iLxaSz4qjmirfqKZdhVQk (cherry picked from commit 1614d82) * fix(libkernel): report the zone's daylight saving amount from sceKernelConvertLocaltimeToUtc libc mktime subtracts it when tm_isdst is set outside summer time, so it must not be zero there. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017iLxaSz4qjmirfqKZdhVQk (cherry picked from commit 15969f2) * fix(libSceSystemService): end LoadExec exit without running guest exit handlers (cherry picked from commit 2dd7f2b) * feat(libc): lazily initialize application heap on first access (cherry picked from commit cee2006) * fix(libkernel): name the failing vnode watch in the kqueue notification error The Windows error for a refused FindFirstChangeNotification was one string shared by WatchParent and WatchContents, so the log could not tell which handle or path was denied. Build it from the watcher, the path the API was given and GetLastError instead. Still throws: the EVFILT_VNODE attach path is vfs_kqfilter, which returns only EINVAL, ENOMEM or 0, with EBADF from fget before it, and consults no directory permission, so no FreeBSD errno stands for a host that refuses to notify. (cherry picked from commit e9d3677) * docs(debt): keep title IDs out of the ported libkernel debt lines Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DgW4n3qYgi5jAAohEmXRQj * fix(libkernel): keep the reused-page table on Darwin after the exit-lifetime change The picked lifetime change moved the physical-used table into the process state behind a Linux-only guard. This fork's direct memory zeroes reused pages on Darwin as well, so the table and its accessor need the same guard as ZeroReusedPhysical. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DgW4n3qYgi5jAAohEmXRQj * test(libc): do not register the lazy application-heap test on macOS The lazy mode needs process parameters that ApplicationHeap.cpp installs only on Windows and Linux, so on macOS the test fails deterministically. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DgW4n3qYgi5jAAohEmXRQj --------- Co-authored-by: Kurenaiiiii <Kurenaiiiii@users.noreply.github.com> Co-authored-by: Oleksandr Sierov <50950970+OleksandrS23@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Co-authored-by: Amirtheshwaran Navaneethakrishnan <anavane1@charlotte.edu> Co-authored-by: Adrià Franch <adriadam10@gmail.com> Co-authored-by: MarcZX100 <marczxrr@gmail.com> Co-authored-by: milescoviello <kitslayer29@gmail.com> Co-authored-by: Nicolas Falesy <112726756+nicolasfalesy@users.noreply.github.com> Co-authored-by: krishalivaibhav <krishalivaibhav@gmail.com> Co-authored-by: SynnZer0 <243459655+SynnZer0@users.noreply.github.com> Co-authored-by: xXPBSXx <20614131+xXPBSXx@users.noreply.github.com> Co-authored-by: Yossi Yadgar <yadgar360@gmail.com> Co-authored-by: hugodearaujo <hugoinjustice@gmail.com> Co-authored-by: David-cmrg <202826622+David-cmrg@users.noreply.github.com> Co-authored-by: hamb3r <hamb3r> Co-authored-by: Rujul Talekar <113801876+Roojool@users.noreply.github.com>

MarcZX10 mentioned this pull request Oct 12, 2026

libkernel: guest socket descriptors start at 0x10000000 and overflow fd_set (Palworld, The Mound, Dying Light 2); fix branch ready #4366

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github-actions Bot added the needs rebase Conflicts with main, rebase needed label Oct 12, 2026

MarcZX10 force-pushed the codex/socket-descriptors-4366 branch from f6ca277 to 268dcec Compare October 12, 2026 08:52

github-actions Bot removed the needs rebase Conflicts with main, rebase needed label Oct 12, 2026

MarcZX10 force-pushed the codex/socket-descriptors-4366 branch from 268dcec to 71b717c Compare October 12, 2026 08:55

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feat(tools): keep technical debt in one file per library #4411

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fix(libkernel): share the directory state between duplicated descriptors on Windows #3872

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xXPBSXx mentioned this pull request Oct 12, 2026

Dying Light 2 (PPSA02262) on Windows: what stops it between conversion and its own startup #1794

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MarcZX10 force-pushed the codex/socket-descriptors-4366 branch from 71b717c to d39b707 Compare October 12, 2026 16:04

This was referenced Oct 12, 2026

feat(libkernel): implement pthread_setaffinity_np #4514

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fix(libkernel): support POLLPRI on Windows sockets #4525

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github-actions Bot removed the needs rebase Conflicts with main, rebase needed label Oct 12, 2026

MarcZX10 added 2 commits October 13, 2026 03:22

fix(libkernel): route updated socket descriptors by table

eb2b360

fix(libkernel): route equeue socket checks by membership

e0ec0c8

MarcZX10 force-pushed the codex/socket-descriptors-4366 branch from e019fbf to e0ec0c8 Compare October 13, 2026 03:28

MarcZX10 mentioned this pull request Oct 13, 2026

feat(libkernel): wait for the low water mark in the kqueue descriptor events #4908

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This was referenced Oct 13, 2026

fix(libkernel): fail write with EINVAL for a size above SSIZE_MAX #4818

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fix(libkernel): report socket status from fstat on a guest socket #4903

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github-actions Bot removed the needs rebase Conflicts with main, rebase needed label Oct 13, 2026

VitzS7 mentioned this pull request Oct 13, 2026

feat(libkernel): carry kqueue read and write events on pipes and terminals #4910

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xXPBSXx mentioned this pull request Oct 13, 2026

fix(libkernel): fail a short or long socket address like FreeBSD #4920

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xXPBSXx mentioned this pull request Oct 13, 2026

fix(libkernel): fail a socket call on an open non-socket descriptor with ENOTSOCK #4922

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nicolasfalesy mentioned this pull request Oct 13, 2026

fix(libkernel): answer fcntl status flags on libSceNet sockets #4924

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github-actions Bot mentioned this pull request Oct 13, 2026

fix(libkernel): return errno from fstat, flock and write instead of throwing on a bad argument #4929

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nicolasfalesy mentioned this pull request Oct 13, 2026

fix(libkernel): poll libSceNet sockets with the host wait #4933

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oneandonlydean merged commit c2565f0 into boykopovar:main Oct 13, 2026
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nicolasfalesy mentioned this pull request Oct 13, 2026

Four open-source homebrew titles stop at start-up on unresolved imports (sysctl, pthread_set_name_np, isatty, mkstemp, signal sets, Opus decoders) #1578

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screamm mentioned this pull request Oct 13, 2026

feat(libkernel): carry chflags implementation #4379

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johnmaia mentioned this pull request Oct 13, 2026

feat(tools): report whether a branch is in step with main #5168

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oneandonlydean mentioned this pull request Oct 14, 2026

Palworld (PPSA23126): next start-up stop is unresolved import oiOi7vgPfAY (sceAudioOut2EnableChat) #2648

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MarcZX10 mentioned this pull request Oct 20, 2026

fix(libkernel): keep socket descriptors within FD_SETSIZE #8595

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thuanquang mentioned this pull request Oct 21, 2026

docs(libkernel): correct three stale socket statements #9365

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fix(libkernel): give guest sockets ordinary descriptor numbers below FD_SETSIZE - #4391

fix(libkernel): give guest sockets ordinary descriptor numbers below FD_SETSIZE#4391
oneandonlydean merged 5 commits into
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