[lanyue-llk]

启动器关闭 stderr 后，记录页面脚本错误可能触发日志组件对损坏管道的二次写入，导致浏览器中止。本 PR 将诊断输出失败限制在日志边界，同时修正 CI 发布归档处理及跨平台测试夹具；正常错误日志与原有功能断言仍须保留。

一图看懂

图示说明问题、修复机制与行为边界；点击可查看原图。验收归属不等于当前提交通过结果，版本和测试证据见下文。

修复机制

使用 tracing 标准配置处理诊断写入失败，不吞掉页面脚本错误。字体相关布局夹具采用确定输入，SQLite 路径夹具分别验证平台可表达的真实路径语义；网络夹具等待真实 socket 接入，避免调度竞态。CI 解包前检查下载和归档有效性，不能把下载错误页当作发布包。

代码阅读路线

• moli/src/telemetry.rs 与 moli/tests/fetch_cli.rs：日志配置和真实子进程，关闭 stderr 的失败路径与正常日志正对照。
• .github/scripts/unpack-ci-release.sh / .test.cjs、相关 action：下载失败、无效归档及成功解包的行为。
• moli-fetch/src/tests/support.rs、layout phase4/phase5 测试、renderer 的 network/file_and_xhr.rs：固定环境不等于删除语义断言；重点审查 socket 时序、字体几何及路径处理。
• .github/workflows/cancel-pr-ci.yml：CI 任务取消边界，避免影响应继续工作的运行。

验收

本 PR 不认领历史 35 个功能 case。验收使用真实进程与独立夹具契约：关闭 stderr 后继续完成页面，正常 stderr 仍输出脚本错误；归档脚本需有坏输入与正常输入；路径和网络用例仍验证真实数据。

历史 22e161c8（base de1093d9c）的 Rust 门禁：18,416 通过、0 失败、13 既有跳过；CI 脚本 13/13。真实 release 对照为旧版关闭 stderr 后 SIGABRT，修复版 exit 0 且内容完整。stderr 红绿证据、Rust 门禁、脚本用例。这些数字对应所列历史版本。

PR 已合入；最后 head 7ab3bb8ba3345b75936c8d82138bbff75ea57a22，base main，最终门禁见 Checks。原修复来源 #734。该工程前提已进入 main，剩余 PR 不再以 #755 分支作为直接 base。

Reviewer 重点

损坏 stderr 是否仅影响诊断输出？正常脚本错误是否仍可观察？夹具是否仍验证相同功能，CI 是否只取消正确范围内的过期运行？

整组验收与证据入口

这组修复来自 #640，对应 1.1.9 的 34 个失败 case，加上 1.1.8 已失败的 386，共 35 个唯一 case。按最终职责分配为：#756 布局 27、#757 输入 4、#758 网络 3、#761 文本 1；#755、#759、#760 以各自独立功能契约验收，不重复认领这 35 个 case。

• 逐 case 问题来源与最终归属、最初 11 类分组。595 在最初分类中是零宽链接问题，最终归属网络，但仍有布局前提。
• 七个 PR 的机制图、逐题结果与审查报告。这是历史验收报告；其中旧 HEAD、旧分支依赖及旧设计，须与本详情中的当前实现、版本信息区分。
• 历史逐项验收来源总表。表内结果来自多个分区、版本和合同，不能表述为当前统一二进制的一轮 35/35。历史 67 是传输超时，不认领为本组功能修复。

[github-actions]

CI Regression Report

Source CI run · source state at render: in_progress · artifacts: 6/6

Check	Status	Signal
Release regression	✅	HEAD/base failures 0/0; raw binary 0.00%
Frontend differential	✅	1,020/1,020 cases matched; 0 issues
Agent episodes	✅	8/8 Moli episodes passed; 0 failures
Runtime/CDP contracts	✅	26 contract cases; 0 failures
CDP smoke	✅	50/50 groups passed; 574 scenarios
WebMainBench	✅	545/545 completed; 0 unexpected failures

Release regression — ✅ HEAD/base failures 0/0; raw binary 0.00%

Package and image size

Metric	Base	HEAD	Delta	Delta %
Raw binary	146.59 MiB	146.59 MiB	0 B	0.00%
Stripped binary	100.57 MiB	100.57 MiB	0 B	0.00%
gzip binary	50.17 MiB	50.17 MiB	−105 B	−0.000200%
Rootfs	153.49 MiB	153.49 MiB	0 B	0.00%
gzip rootfs	58.95 MiB	58.95 MiB	+151 B	+0.000244%

Startup latency and PSS

Case	Base p50	HEAD p50	Delta	Base PSS	HEAD PSS	Delta
Serve ready	28.73 ms	4.89 ms	−23.84 ms	3.82 MiB	8.37 MiB	+4.55 MiB
CDP first page	58.26 ms	61.05 ms	+2.79 ms	3.93 MiB	6.84 MiB	+2.91 MiB
CDP warm page	17.57 ms	19.20 ms	+1.63 ms	48.93 MiB	48.60 MiB	−339.50 KiB
CLI about:blank	18.40 ms	21.39 ms	+2.99 ms	5.08 MiB	3.73 MiB	−1.35 MiB
CLI local JS	25.79 ms	20.10 ms	−5.70 ms	3.20 MiB	2.92 MiB	−286.50 KiB

Concurrency matrix

Concurrency	Base p50	HEAD p50	Delta	Base PSS	HEAD PSS	Delta	HEAD failures	Unstable B/H
1	17.62 ms	20.53 ms	+2.91 ms	467.00 KiB	471.00 KiB	+4.00 KiB	0	0/0
5	19.51 ms	24.74 ms	+5.22 ms	27.01 MiB	13.35 MiB	−13.66 MiB	0	0/0
10	20.54 ms	34.41 ms	+13.88 ms	19.95 MiB	11.14 MiB	−8.81 MiB	0	0/0
25	20.30 ms	31.63 ms	+11.33 ms	25.39 MiB	8.66 MiB	−16.73 MiB	0	0/0
100	23.58 ms	31.61 ms	+8.03 ms	11.74 MiB	10.04 MiB	−1.71 MiB	0	0/0

Frontend differential — ✅ 1,020/1,020 cases matched; 0 issues

Match	DOM mismatch	Diagnostic mismatch	Moli error	Reference error	Infrastructure error	Mismatched frames	Duration
1,020	0	0	0	0	0	0	7m 36.51s

Agent episodes · Moli vs Chromium — ✅ 8/8 Moli episodes passed; 0 failures

Fast contract	Episodes	Passed	Assertions	Ready p50	Episode p50
Moli	8	8	47/47	29.82 ms	33.62 ms
Chromium	8	8	47/47	348.25 ms	119.86 ms

Operation p50	Chromium	Moli	Delta	Delta %
navigate	70.72 ms	7.85 ms	−62.87 ms	−88.90%
observe	2.00 ms	1.98 ms	−0.02 ms	−0.83%
fill	6.05 ms	4.16 ms	−1.89 ms	−31.20%
click	7.58 ms	6.89 ms	−0.69 ms	−9.14%

Idle-resource episode	Peak RSS	Peak PSS	Average CPU	Peak CPU	Peak processes	Sampler
Moli	64.14 MiB	61.49 MiB	0.70%	9.99%	1	✅
Chromium	1283.10 MiB	331.48 MiB	1.96%	92.04%	13	✅

Runtime and CDP session contracts — ✅ 26 contract cases; 0 failures

Suite	Cases	Failures	Median case p50	Median case p95	Median peak PSS p50
Synthetic fetch	13	0	24.85 ms	29.19 ms	536.00 KiB
Long-lived CDP session	13	0	21.57 ms	23.58 ms	—

CDP smoke — ✅ 50/50 groups passed; 574 scenarios

Workers: 4 · cumulative group time: 168.79 s · failed groups: 0

Slowest group	Scenarios	Duration	Status
target-lifecycle	24	18.74 s	✅
dom-input	27	14.26 s	✅
multi-page	45	13.00 s	✅
chromium-cdp	56	11.15 s	✅
multi-context	17	8.32 s	✅

WebMainBench · 545 pages — ✅ 545/545 completed; 0 unexpected failures

Completed	Successful	Expected DNS failure	Unexpected failures	Panics	Crashes	Timeouts	Empty output
545/545	544	1	0	0	0	0	0

Frozen HTML · Linux · --wait done · 45 seconds per page · no retries. Content quality is evaluated separately.

Diagnostics: webmainbench-results — every page's Markdown, stderr, and exit status. Source run and artifacts

All artifact fields are parsed by the trusted default-branch renderer; missing or invalid inputs remain visible as unavailable.

[github-actions]

Spider Bench A/B

✅ All benchmark browser service runs completed; results are informational.

Public HEAD: 184 / 240 rows; 38 / 48 sites produced rows; 10 unexpected empty sites.

✅ Deterministic fixture contract is clean.

Common ancestor 82e4533ae1a8 → HEAD 7ab3bb8ba334; benchmark order: head-first; workflow: success.

Public 48-site run · informational

Metric	Base	HEAD	Δ
Run status	success	success	—
Extracted rows / contract	184 / 240	184 / 240	0 (0.00%)
Contract fill	76.67%	76.67%	0.00 pp (0.00%)
Sites with rows	38 / 48	38 / 48	0 (0.00%)
Sites meeting row contract	36 / 48	36 / 48	0 (0.00%)
Unexpected empty sites	10	10	0 (0.00%)
Partial-row sites	2	2	0 (0.00%)
Site outcomes	extracted: 37; HTTP error + rows: 1; empty: 7; HTTP error + empty: 1; snapshot error + empty: 2	extracted: 36; HTTP error + rows: 2; empty: 7; HTTP error + empty: 1; snapshot error + empty: 2	—
Observed duration	42.28 s	50.03 s	+7.75 s (+18.32%)
Estimated CPU	43.85 s	45.98 s	+2.13 s (+4.85%)
Peak PSS	270.96 MiB	269.20 MiB	-1.76 MiB (-0.65%)
Peak RSS	275.05 MiB	272.68 MiB	-2.37 MiB (-0.86%)
Peak threads	26	27	+1 (+3.85%)
Mismatched sites	0	0	0
Timeout with items	0	0	0

Category rows	Base	HEAD	Δ
news	35 / 40	35 / 40	0
stocks	20 / 40	20 / 40	0
tech	35 / 40	35 / 40	0
sports	27 / 40	27 / 40	0
games	37 / 40	37 / 40	0
life	30 / 40	30 / 40	0

Public-site content, timing, and memory are noisy. This single A/B run reports evidence only; site outcome counts explain missing rows without treating them as a deterministic regression.

CPU and memory timelines

These are bounded 40-point views of the same complete process-tree samples used by the HTML report. CPU uses 100% per occupied logical core; memory lines are RSS first and PSS second when complete PSS samples are available.

Base

xychart-beta
    title "Base CPU"
    x-axis "Elapsed seconds" [1.035, 2.036, 2.536, 3.537, 4.538, 5.54, 6.04, 6.54, 7.04, 8.54, 9.542, 10.544, 12.044, 13.044, 14.045, 15.548, 16.549, 17.551, 19.054, 20.056, 21.559, 22.56, 23.561, 25.064, 26.065, 27.067, 28.569, 29.569, 30.572, 32.073, 33.074, 34.076, 35.577, 36.579, 38.081, 39.081, 40.082, 41.584]
    y-axis "CPU percent" 0 --> 200
    line [2, 132, 95.92, 101.91, 149.9, 129.83, 188, 128.01, 141.97, 179.93, 111.8, 153.9, 108.01, 129.92, 97.94, 117.79, 59.96, 35.93, 121.75, 41.91, 141.7, 105.97, 109.76, 143.64, 107.9, 143.86, 129.83, 97.97, 77.81, 7.98, 93.93, 115.78, 17.98, 1.99, 123.81, 135.77, 103.93, 127.85]

Loading

xychart-beta
    title "Base memory: RSS then PSS"
    x-axis "Elapsed seconds" [0.035, 1.035, 2.036, 2.536, 3.537, 4.538, 5.54, 6.04, 6.54, 7.04, 8.54, 9.542, 10.544, 12.044, 13.044, 14.045, 15.548, 16.549, 17.551, 19.054, 20.056, 21.559, 22.56, 23.561, 25.064, 26.065, 27.067, 28.569, 29.569, 30.572, 32.073, 33.074, 34.076, 35.577, 36.579, 38.081, 39.081, 40.082, 41.584, 42.281]
    y-axis "Memory MiB" 0 --> 500
    line [12.07, 60.8, 94.81, 107.5, 126.46, 142.8, 158.82, 143.22, 158.89, 176.88, 157.5, 186.79, 171.37, 172.46, 169.16, 174.69, 157.6, 151.98, 153.58, 157.21, 155.26, 163.84, 275.05, 196.03, 163.44, 162.48, 175, 187.61, 141.59, 143.32, 143.67, 170.04, 167.06, 158.2, 151.23, 196.93, 153.93, 157.95, 188.95, 0]
    line [8.73, 57.12, 91.12, 103.81, 122.81, 139.07, 155.09, 139.52, 155.18, 173.23, 153.91, 183.19, 167.98, 169.16, 165.87, 171.04, 153.97, 148.33, 149.93, 153.56, 151.62, 162.31, 270.96, 192.44, 159.84, 158.84, 171.48, 183.97, 138.01, 139.77, 139.86, 166.4, 163.31, 154.48, 147.52, 193.28, 150.28, 154.38, 185.41, 0]

Loading

HEAD

xychart-beta
    title "HEAD CPU"
    x-axis "Elapsed seconds" [1.535, 2.537, 3.037, 4.039, 5.04, 5.541, 7.042, 8.544, 9.546, 11.049, 12.549, 14.05, 15.553, 16.554, 18.057, 19.559, 21.066, 22.067, 23.569, 25.07, 26.574, 28.078, 29.081, 30.584, 32.087, 33.589, 34.591, 36.169, 37.717, 39.221, 40.723, 41.725, 42.725, 43.226, 44.727, 46.229, 47.229, 48.729]
    y-axis "CPU percent" 0 --> 500
    line [115.98, 97.74, 135.86, 127.91, 171.8, 169.66, 172.03, 85.86, 195.57, 123.78, 61.99, 133.76, 2, 2, 117.9, 5.99, 3.99, 27.96, 67.88, 144.07, 111.13, 103.8, 108.05, 93.77, 97.93, 127.51, 97.8, 17.97, 15.97, 139.67, 79.91, 2, 0, 3.99, 114, 121.72, 30, 127.93]

Loading

xychart-beta
    title "HEAD memory: RSS then PSS"
    x-axis "Elapsed seconds" [0.035, 1.535, 2.537, 3.037, 4.039, 5.04, 5.541, 7.042, 8.544, 9.546, 11.049, 12.549, 14.05, 15.553, 16.554, 18.057, 19.559, 21.066, 22.067, 23.569, 25.07, 26.574, 28.078, 29.081, 30.584, 32.087, 33.589, 34.591, 36.169, 37.717, 39.221, 40.723, 41.725, 42.725, 43.226, 44.727, 46.229, 47.229, 48.729, 50.027]
    y-axis "Memory MiB" 0 --> 500
    line [12.07, 92.41, 114.57, 121.37, 132.53, 164.53, 154.56, 158.7, 168.32, 191.53, 163.52, 164.27, 168.71, 137.18, 142.11, 154.84, 148.11, 140.85, 138.74, 149.63, 160.08, 272.68, 198.11, 156.23, 157.38, 187.65, 144.68, 148.15, 147.25, 148.54, 189.65, 164.85, 147.31, 140.31, 138.8, 152.97, 160.59, 154.76, 183.23, 0]
    line [8.79, 88.77, 110.93, 117.75, 128.89, 161.09, 150.91, 155.06, 164.79, 188.01, 159.88, 160.62, 165.33, 133.5, 138.43, 151.16, 144.42, 137.17, 135.04, 145.86, 156.39, 269.2, 194.37, 152.41, 153.26, 183.68, 140.4, 144.33, 143.55, 144.82, 185.35, 161.22, 143.63, 136.65, 135.08, 149.25, 156.87, 151.04, 179.51, 0]

Loading

Deterministic fixture · required contract

The fixture exercises 15 routes: 8 are expected to emit rows and 7 intentionally exercise empty, loading, or timeout behavior.

Metric	Base	HEAD	Δ
Run status	success	success	—
Extracted rows / contract	40 / 40	40 / 40	0 (0.00%)
Contract fill	100.00%	100.00%	0.00 pp (0.00%)
Sites with rows	8 / 15	8 / 15	0 (0.00%)
Sites meeting row contract	15 / 15	15 / 15	0 (0.00%)
Unexpected empty sites	0	0	0
Partial-row sites	0	0	0
Site outcomes	extracted: 7; HTTP error + rows: 1; empty: 3; timeout + empty: 4	extracted: 7; HTTP error + rows: 1; empty: 3; timeout + empty: 4	—
Observed duration	19.88 s	19.90 s	+0.02 s (+0.10%)
Estimated CPU	0.42 s	0.48 s	+0.06 s (+14.25%)
Peak PSS	57.95 MiB	57.98 MiB	+0.03 MiB (+0.06%)
Peak RSS	61.41 MiB	61.40 MiB	-0.01 MiB (-0.02%)
Peak threads	18	19	+1 (+5.56%)
Mismatched sites	0	0	0
Timeout with items	0	0	0

Full HTML, JSON, CSV, logs, and page snapshots: workflow run and full spider-bench-results artifact.

The public-web A/B is informational. The exact HEAD fixture contract runs as a separate required CI check; timing and public-site content deltas remain non-blocking.

[github-actions]

Sequential Navigation Soak A/B

✅ HEAD completed the 200-navigation resilience and memory observation.

One browser process, one target, and one CDP session navigate CSDN → SegmentFault → Huaban → example.com repeatedly. This run issued 200 Page.navigate commands per binary.

Common ancestor 82e4533ae1 → HEAD 7ab3bb8ba3; benchmark order: head-first; workflow: success.

Session resilience

Metric	Base	HEAD
Attempted / planned	200 / 200	200 / 200
Direct observable pass	199 / 200	199 / 200
Failures / recovered	1 / 1	1 / 1
Recovery failures	0	0
Lifecycle order violations	0	0
Network order violations	0	0
Wall time	321.3 s	299.5 s

A public-page failure is reported separately from an unrecoverable session. The soak requires all navigation attempts, zero failed recovery, zero lifecycle/network ordering violations, and complete resource evidence.

Process-tree memory

Metric	Base	HEAD	Δ
Boundary samples	200	200	0
Boundary RSS samples	200	200	0
Boundary PSS samples	200	200	0
Periodic peak RSS	219.1 MiB	199.4 MiB	-19.7 MiB
Periodic peak PSS	216.2 MiB	196.3 MiB	-20.0 MiB
RSS · first 10 avg	166.4 MiB	145.3 MiB	-21.1 MiB
RSS · last 10 avg	130.6 MiB	142.0 MiB	+11.4 MiB
RSS · last − first window	-35.8 MiB	-3.4 MiB	+32.4 MiB
RSS · warm slope / 100 nav	-13.5 MiB	+1.8 MiB	+15.3 MiB
PSS · first 10 avg	163.7 MiB	142.2 MiB	-21.5 MiB
PSS · last 10 avg	128.2 MiB	139.7 MiB	+11.5 MiB
PSS · last − first window	-35.6 MiB	-2.5 MiB	+33.1 MiB
PSS · warm slope / 100 nav	-13.4 MiB	+2.1 MiB	+15.5 MiB
Peak file descriptors	63	62	-1
Peak threads	31	31	0

HEAD memory by 50-navigation quarter

HEAD range	Avg RSS	Final RSS	Peak RSS	Avg PSS	Final PSS	Peak FD
1–50	141.7 MiB	129.3 MiB	199.5 MiB	139.2 MiB	127.1 MiB	52
51–100	139.9 MiB	116.5 MiB	182.3 MiB	136.1 MiB	112.6 MiB	54
101–150	142.5 MiB	133.9 MiB	165.4 MiB	139.3 MiB	131.1 MiB	52
151–200	142.7 MiB	128.2 MiB	176.0 MiB	140.1 MiB	126.0 MiB	52

Raw reports and per-navigation boundary samples: workflow run and full sequential-navigation-soak-results artifact.

Public-site timing and memory are observational. Use the A/B deltas and trend shape as evidence, not as a deterministic performance threshold.