0.5.6: silent crash during recording on Windows 11 (0xc0000005, mostly ntdll.dll) - recording lost, no error shown
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 新手友好度
- 35/100
- Issue 类型
- 缺陷
- 描述清晰度
- 基本清楚
- 活跃度
- 冷清
调研方向
首先，在 Windows 11 上复现暂停屏幕和麦克风录制时的崩溃，然后检查 Cap logs 和 Windows Event Log 条目中的访问冲突。完成的标准是录制不再静默退出、录制会通过 project-config.json 完成最终化，并且在关闭失败时显示错误。
由索引模型根据 Issue 内容生成。
描述
Summary
Since updating to 0.5.6 (released Jul 17), Cap crashes silently mid-recording on Windows 11. The recording indicator/tray simply disappears, no error dialog is shown, and the recording is lost (the .cap folder is left without project-config.json, only orphaned DASH segments). Before 0.5.6 the same setup was stable for weeks of daily recordings.
What triggers it
- Most reliably: pressing Pause during a recording (reproduced several times).
- But it also dies spontaneously during recording with no interaction at all — we only noticed because the recording indicator was gone.
Windows Event Log evidence
7 APPCRASH events on Jul 18 alone, all Cap.exe 0.5.6.0 (timestamp 0x6a4edb0e), exception code 0xc0000005 (access violation):
| Time (local) | Faulting module | Offset |
|---|---|---|
| 10:04 | ntdll.dll 10.0.26100.8521 | 0x21dc9 |
| 10:33 | ntdll.dll | 0x21dc9 |
| 10:37 | ntdll.dll | 0x21dc9 |
| 10:40 | ntdll.dll | 0x164747 |
| 11:22 | Cap.exe | 0x1e9ba80 |
| 11:28 | ntdll.dll | 0x1decd |
| 11:32 | ntdll.dll | 0x164747 |
Cap's own logs end abruptly mid-recording (no "pipeline shutdown" / teardown lines), consistent with a hard process crash. The ntdll offsets (heap paths) at multiple distinct addresses suggest heap corruption rather than a single bad call site.
Environment
- Cap 0.5.6.0 (desktop, installed via .exe), path
C:\Users\<user>\AppData\Local\Cap\Cap.exe - Windows 11 Home, build 26200
- Recording: screen + mic, DASH segments visible in
%APPDATA%\so.cap.desktop\recordings\
Additional note
Older releases on GitHub currently have no installer assets attached, so downgrading as a workaround isn't possible. If you could attach a 0.5.5 (or last-known-good) Windows installer to a release, that would help affected users a lot while this is investigated.
Happy to provide full logs or the WER report IDs if useful.
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