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NVDA, the free and open source Screen Reader for Microsoft Windows
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NVDA 2021.2 unpredictably crashing when using Chrome's Back command #13001

Closed chrisnorman7 closed 3 years ago

chrisnorman7 commented 3 years ago

Steps to reproduce:

Navigate to (presumably) any website. I most commonly see this behaviour on [https://forum.audiogames.net/].

Click a few links. The actual number doesn't seem to matter. I've had this happen after just one click, but when I tried just now to force it to happen, I got nothing after about 50.

Hit alt left arrow to go back a page.

Actual behavior:

On my system, very occasionally NVDA crashes, the fan speed increases, and when I reload NVDA there are now multiple NVDA icons in the system tray, with only one icon actually doing anything.

This happens daily rather than weekly, but I can't find any pattern to it. It only seems to happen when going back a page, rather than when navigating with a link or whatever.

Expected behavior:

For it not to crash. :)

System configuration

NVDA installed/portable/running from source:

Installed.

NVDA version:

NonVisual Desktop Access (NVDA) Version: 2021.2

Windows version:

From winver:

Version 21H1 (OS Build 19043.1288)

Name and version of other software in use when reproducing the issue:

Google Chrome

Chrome is up to date Version 95.0.4638.54 (Official Build) (64-bit)

Other information about your system:

I am using an AMD processor, for whatever that's worth.

Other questions

Does the issue still occur after restarting your computer?

Yes.

Have you tried any other versions of NVDA? If so, please report their behaviors.

I don't think this happened on older versions, but I never really paid much attention to when it changed.

If NVDA add-ons are disabled, is your problem still occurring?

Due to the random nature, I haven't tested this. Happy to though, if it would help.

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

I've only just ran it, so I guess I'll find out.

feerrenrut commented 3 years ago

Please set your logging level to debug. After the next crash please collect the NVDA logs and any crash dump file and attach it to this issue. For instructions please see https://github.com/nvaccess/nvda/wiki/LogFilesAndCrashDumps

chrisnorman7 commented 3 years ago

OK, I will do that. Thank you.

Take care,

Chris Norman

On Thu, 28 Oct 2021 at 06:54, Reef Turner @.***> wrote:

Please set your logging level to debug. After the next crash please collect the NVDA logs and any crash dump file and attach it to this issue. For instructions please see https://github.com/nvaccess/nvda/wiki/LogFilesAndCrashDumps

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/nvaccess/nvda/issues/13001#issuecomment-953524565, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABBUZ2KH7YQUYEJ52523I3LUJDQQZANCNFSM5G37G3CA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

chrisnorman7 commented 3 years ago

Hi, Predictably, when I want it to happen, it hasn't.

So I edited my log, since it was over 200 MB, and there was loads of stuff in there I didn't want laying around on the internet for obvious reasons, but I have retained the unabridged copy in case my truncated version doesn't provide all that is needed.

The problems start when I hit alt left arrow, which is there in the log. Hopefully this will help.

nvda-log.edited.log

Thanks in advance.

lukaszgo1 commented 3 years ago

Would it be possible for you to work for a few days with Braille Extender disabled? From your log it seems the freeze occurs inside Braille Extender's code rather than in NVDA itself.

CyrilleB79 commented 3 years ago

Cc @aaclause for information, in case it is confirmed Braille Extender is in cause.

AAClause commented 3 years ago

Thanks @CyrilleB79 for letting me know. Indeed, it is very likely that Braille Extender is the cause. @chrisnorman7 I think the crash should go away by completely disabling the undefined characters feature. For that, please go to: NVDA menu > "Braille Extender" submenu > Settings... > "Undefined character representation" category > "Representation method" listbox. Then select the first option i.e. "Use braille table behavior (no description possible)". Sorry for that. In the meantime, I'll disable this feature by default.

chrisnorman7 commented 3 years ago

Hi, Thank you so much for that, I've just enacted the change you suggest. I'll close this in a few days if the problem hasn't come back.

Cheers,

Take care,

Chris Norman

On Sun, 31 Oct 2021 at 15:05, André-Abush Clause @.***> wrote:

Thanks @CyrilleB79 https://github.com/CyrilleB79 for letting me know. Indeed, it is very likely that Braille Extender is the cause. @chrisnorman7 https://github.com/chrisnorman7 I think the crash should go away by completely disabling the undefined characters feature. For that, please go to: NVDA menu > "Braille Extender" submenu > Settings... > "Undefined character representation" category > "Representation method" listbox. Then select the first option i.e. "Use braille table behavior (no description possible)". Sorry for that. In the meantime, I'll disable this feature by default.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/nvaccess/nvda/issues/13001#issuecomment-955716831, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABBUZ2NJTUNU3LEYOZDHKADUJVLL5ANCNFSM5G37G3CA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

seanbudd commented 3 years ago

Hi @chrisnorman7 - has the problem returned? I've closed the issue, feel free to reopen.

chrisnorman7 commented 3 years ago

Sorry, it's been a busy week, and I admittedly forgot about this.

No, the problem hasn't returned since I affected the above configuration changes, so it's fine closed.

Take care,

Chris Norman

On Sun, 7 Nov 2021 at 22:37, Sean Budd @.***> wrote:

Hi @chrisnorman7 https://github.com/chrisnorman7 - has the problem returned? I've closed the issue, feel free to reopen.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/nvaccess/nvda/issues/13001#issuecomment-962693585, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABBUZ2ICPSEHKU5P4LKHRFTUK35SJANCNFSM5G37G3CA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.