The index current IPC startup failure came from a tai-kernel validation mismatch:
compact staging allocations are rounded capacity buffers and do not need to be
page-size divisible. Record the failure signature and the intended contract so
future changes do not reintroduce dense-sized or page-multiple assumptions.
Constraint: TAI compact staging fix lives in the kernel repository; this change documents the runtime contract in SGLang
Rejected: Leave the issue only in commit history | future debugging would repeat the log search and root-cause analysis
Confidence: high
Scope-risk: narrow
Directive: For compact current staging, validate capacity bytes, not page-array shape
Tested: Remote cjy-glm5-new SGLang runtime helper suite -> 144 passed, 2 subtests passed
Not-tested: Documentation rendering
(cherry picked from commit ce281c19be5d54cd2cb345543b0384d7560c95ef)
d7eb90dff2