Debian Patches
Status for libipc-shareable-perl/1.19-2
| Patch | Description | Author | Forwarded | Bugs | Origin | Last update |
|---|---|---|---|---|---|---|
| powerpc-shmid_ds-offset.patch | shm_segments: use the PowerPC offset of shm_segsz on PowerPC PowerPC orders struct shmid_ds with the three time fields before shm_segsz; the generic layout puts shm_segsz first. The fixed offset therefore reads shm_atime on ppc64el and ppc64, and the oversized value makes the following shmread() fail, so the segment never reaches %segments. That fails t/72-shm_segments.t and t/74-seg_map.t. . Minimal alternative to portable-shmid_ds.patch; use one or the other. |
Edmund Lodewijks <edmund@proteamail.com> | yes | debian | 2026-08-28 | |
| powerpc-sharedmem-stat-offsets.patch | SharedMem::stat: use the PowerPC offsets of struct shmid_ds The per-OS offset table assumes the asm-generic field order, where shm_segsz follows ipc64_perm and the three time fields come after it. PowerPC puts the time fields first and shm_segsz after them, so segsz, atime, dtime and ctime are all read from the wrong place there. cpid, lpid and nattch are unaffected: both layouts are 48 bytes of ipc64_perm followed by four 8-byte fields, so those three keep their offsets. . Companion to powerpc-shmid_ds-offset.patch, which does the same for shm_segments(). No test currently catches this one: t/05-shm_stat.t asserts only segsz >= SHM_BUFSIZ, and the value misread on PowerPC is shm_atime, a timestamp far larger than SHM_BUFSIZ. The suite therefore passes without this patch, but stat() still reports nonsense on ppc64el and ppc64. . The 64-bit offsets match the kernel headers and qemu's target_structs.h, and are confirmed by a passing test suite on ppc64el under emulation. The 32-bit PowerPC arm is derived from the headers only and is untested; Debian's 32-bit powerpc is a ports architecture with no buildd coverage. diff --git a/lib/IPC/Shareable/SharedMem.pm b/lib/IPC/Shareable/SharedMem.pm index 4e6529e..3388ef4 100644 |
Edmund Lodewijks <edmund@proteamail.com> | yes | debian | 2026-09-02 |