Git commit signing fails with `error: failed to fill whole buffer`

robertodr Did you set SSH_AUTH_SOCK? And do you see anything appear in the 1Password logs (~/.config/1Password/logs on Linux) when you run the failing command?

I've updated to the 1Password 8.10.7 for Linux and am running version 2.18.0 of the CLI. It does not help with the issue. Furthermore,
it fails even with ssh-keygen:
```
09:56:17.890957 run-command.c:655 trace: run_command: ssh-keygen -Y sign -n git -f /tmp/.git_signing_key_tmpjLtuG9 -U /tmp/.git_signing_buffer_tmpyIEiLZ
error: Signing file /tmp/.git_signing_buffer_tmpyIEiLZ
Couldn't sign message (signer): agent refused operation?
Signing /tmp/.git_signing_buffer_tmpyIEiLZ failed: agent refused operation?

fatal: failed to write commit object
```

What you can do as a workaround while we investigate is to remove op-ssh-sign as the gpg.ssh.program in your Gitconfig, which will make it use the default ssh-keygen program. And then make sure it has SSH_AUTH_SOCK set to ~/.1password/agent.sock.

Hello!
For me git commit fails in every repo and for every commit. Whether I just restarted or the system has been up for a while doesn't matter. git commit with signing just doesn't work.

floris_1P It's possible commit in any repo during some time after system restart, it's possible to run any Git work like git fetch, git merge etc. But at a random moment the error starts to creep and affects all repositories.

The error (timeout) happens in only one branch, the others keep working normally.

This is the git output after I try to commit changes:
```
2023-05-26 17:43:10.913 [info] > git check-ignore -v -z --stdin [4ms]
2023-05-26 17:44:00.055 [info] > git -c user.useConfigOnly=true commit --quiet --allow-empty-message --file - [60010ms]
2023-05-26 17:44:00.055 [info] error: failed to fill whole buffer

fatal: failed to write commit object
2023-05-26 17:44:00.067 [info] > git config --get-all user.name [2ms]
2023-05-26 17:44:00.078 [info] > git config --get-all user.email [1ms]
2023-05-26 17:44:00.089 [info] > git config --get commit.template [1ms]
2023-05-26 17:44:00.102 [info] > git for-each-ref --format=%(refname)%00%(upstream:short)%00%(objectname)%00%(upstream:track)%00%(upstream:remotename)%00%(upstream:remoteref) refs/heads/chore/sc-47656/hide-name-of-the-branch-here- refs/remotes/chore/sc-47656/hide-name-of-the-branch-here- [2ms]
2023-05-26 17:44:00.121 [info] > git status -z -uall [8ms]
``
(maybe thegit check-ignore -v -z --stdin` can be ignored, this happened after the commit command in vscode)

This is the 1Password app log:

INFO 2023-05-26T20:42:37.938 ThreadId(8) [client:typescript] Client starting.
INFO 2023-05-26T20:42:37.999 tokio-runtime-worker(ThreadId(5)) [1P:native-messaging/op-native-core-integration/src/lib.rs:316] Starting IPC listener on 1Password-BrowserSupport
INFO 2023-05-26T20:42:37.999 ThreadId(8) [1P:op-localization/src/lib.rs:225] system locale detected as 'pt-BR'
INFO 2023-05-26T20:42:37.999 ThreadId(8) [1P:op-localization/src/lib.rs:251] selected translations for PT_BR based on detected locale pt-BR
INFO 2023-05-26T20:42:37.999 tokio-runtime-worker(ThreadId(5)) [1P:native-messaging/op-native-core-integration/src/lib.rs:328] Active native core integration is awaiting messages
INFO 2023-05-26T20:42:37.999 ThreadId(8) [status:op-app/src/app.rs:479] App::new(1Password for Linux/81006027 (PT_BR), /home/$USER/.config/1Password/1password.sqlite)
INFO 2023-05-26T20:42:38.002 ThreadId(8) [1P:data/op-db/src/db.rs:127] Starting DB at version: 27
INFO 2023-05-26T20:42:38.004 ThreadId(8) [1P:ssh/op-ssh-config/src/lib.rs:221] agent configured
ERROR 2023-05-26T20:42:38.004 ThreadId(8) [1P:ffi/op-core-node/src/lib.rs:59] Attempted to notify uninitialized App
ERROR 2023-05-26T20:42:38.004 ThreadId(8) [1P:ffi/op-core-node/src/lib.rs:59] Attempted to notify uninitialized App
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/google-chrome/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/google-chrome-beta/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/google-chrome-unstable/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/chromium/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/microsoft-edge-dev/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/BraveSoftware/Brave-Browser/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/vivaldi/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.config/vivaldi-snapshot/NativeMessagingHosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:68] Created NMH manifest at /home/$USER/.mozilla/native-messaging-hosts/com.1password.1password.json
INFO 2023-05-26T20:42:38.004 invocation_loop(ThreadId(15)) [1P:native-messaging/op-nm-installer/src/nix_utils.rs:83] Successfully installed all native messaging manifests.
INFO 2023-05-26T20:42:38.005 tokio-runtime-worker(ThreadId(5)) [1P:ssh/op-agent-controller/src/desktop.rs:474] SSH Agent has started.
INFO 2023-05-26T20:42:50.435 tokio-runtime-worker(ThreadId(3)) [1P:data/ext/op-account-ext-search-weights/src/weights.rs:67] Search weights loaded for account with 7 entries (total bytes: 340)
INFO 2023-05-26T20:42:50.439 tokio-runtime-worker(ThreadId(3)) [1P:data/ext/op-account-ext-items/src/lib.rs:236] loaded 476 items in 8 vaults for account: TYKZ75KOYFHANAHYGT6TUSRD7Q
INFO 2023-05-26T20:42:50.441 invocation_loop(ThreadId(15)) [1P:op-app/src/app/backend/unlock.rs:151] Lock state changed: Unlocked
INFO 2023-05-26T20:42:50.442 tokio-runtime-worker(ThreadId(6)) [1P:native-messaging/op-native-core-integration/src/lib.rs:342] Setting has been toggled on/off, restarting native core integration
INFO 2023-05-26T20:42:50.442 tokio-runtime-worker(ThreadId(6)) [1P:native-messaging/op-native-core-integration/src/lib.rs:316] Starting IPC listener on 1Password-BrowserSupport
INFO 2023-05-26T20:42:50.443 tokio-runtime-worker(ThreadId(3)) [1P:native-messaging/op-native-core-integration/src/lib.rs:328] Active native core integration is awaiting messages
INFO 2023-05-26T20:42:51.459 tokio-runtime-worker(ThreadId(2)) [1P:op-b5-client/src/internal/unauthorized_session.rs:1163] Verifying device secret (MFA) with server...
INFO 2023-05-26T20:42:51.635 tokio-runtime-worker(ThreadId(1)) [1P:op-b5-client/src/internal/unauthorized_session.rs:824] Device secret was verified
INFO 2023-05-26T20:42:51.635 tokio-runtime-worker(ThreadId(1)) [1P:op-b5-client/src/internal/unauthorized_session.rs:842] No new device secret was given as current one is still valid and verified
INFO 2023-05-26T20:42:52.105 tokio-runtime-worker(ThreadId(4)) [1P:op-syncer/src/sync_job.rs:306] synced account TYKZ75KOYFHANAHYGT6TUSRD7Q (0.170776069s)
INFO 2023-05-26T20:42:52.105 tokio-runtime-worker(ThreadId(4)) [1P:data/op-file-transfer/src/lib.rs:565] find_and_complete_pending_uploads: 'TYKZ75KOYFHANAHYGT6TUSRD7Q'
INFO 2023-05-26T20:42:52.499 tokio-runtime-worker(ThreadId(4)) [1P:data/ext/op-account-ext-syncer/src/lib.rs:256] The B5 Notifier for (TYKZ75KOYFHANAHYGT6TUSRD7Q) has connected, now monitoring for events.
INFO 2023-05-26T20:43:01.056 tokio-runtime-worker(ThreadId(5)) [1P:ssh/op-ssh-agent/src/lib.rs:527] Notifying user through tray icon that they have a background prompt waiting
INFO 2023-05-26T20:44:00.054 tokio-runtime-worker(ThreadId(5)) [1P:ssh/op-ssh-agent/src/lib.rs:358] ssh authorization prompt timed out
INFO 2023-05-26T20:44:25.442 tokio-runtime-worker(ThreadId(4)) [1P:native-messaging/op-native-core-integration/src/lib.rs:353] Extension connecting.
INFO 2023-05-26T20:44:25.442 tokio-runtime-worker(ThreadId(4)) [1P:native-messaging/op-native-core-integration/src/lib.rs:355] Extension connection accepted.
INFO 2023-05-26T20:45:21.730 invocation_loop(ThreadId(15)) [1P:op-app/src/app/backend/frontend.rs:22] Front end event: window closed
INFO 2023-05-26T20:45:21.732 invocation_loop(ThreadId(15)) [1P:op-app/src/app/backend/frontend.rs:51] Front end event: app will quit
INFO 2023-05-26T20:45:21.732 invocation_loop(ThreadId(15)) [1P:op-app/src/app/shutdown.rs:65] starting app shutdown
ERROR 2023-05-26T20:45:21.738 tokio-runtime-worker(ThreadId(5)) [1P:native-messaging/op-native-core-integration/src/connection_handler.rs:62] message from b5x was None: EndConnection
ERROR 2023-05-26T20:45:21.738 tokio-runtime-worker(ThreadId(5)) [1P:native-messaging/op-native-core-integration/src/connection_handler.rs:31] Dropping connection with b5x due to error handling incoming message: EndConnection
INFO 2023-05-26T20:45:21.837 ThreadId(12) [1P:data/op-db-queue/src/lib.rs:236] db shutdown requested
INFO 2023-05-26T20:45:21.837 ThreadId(12) [1P:data/op-db-queue/src/lib.rs:244] db queue worker exiting
INFO 2023-05-26T20:45:21.837 invocation_loop(ThreadId(15)) [1P:op-app/src/app/shutdown.rs:102] app shutdown complete


I am at your disposal if you need more information.

I have de same issue with Git 2.40.1, Ubuntu 20.04 and the latest version of 1Password CLI avaiable (2.18.0).

This is the output:

```
git -c user.useConfigOnly=true commit --quiet --allow-empty-message --file -
error: failed to fill whole buffer

fatal: failed to write commit object
```

I'm using Ubuntu 20.04 with the latest version of 1Password.

I was able to commit again when fully restart the Ubuntu.

That's one we haven't seen before. Does it always fail consistently for each commit in each repo? And do other SSH authentication requests to the same Git remote work fine (e.g. git fetch)?

And given that we haven't been able reproduce this yet, it could be helpful if you could provide the debug logs, by relaunching the 1Password app with the OP_LOG_LEVEL environment variable set to debug and running the failing commit request again.

There's a shortcut to go to the logs directory in the Troubleshooting menu > Open Logs Folder.