Folding Forum

There is something in the console app showing fah errors...
2025-11-23 13:52:09.196235 (system/org.foldingathome.fahclient) <Notice>: service state: spawning
2025-11-23 13:52:09.196281 (system/org.foldingathome.fahclient) <Notice>: launching: semaphore
2025-11-23 13:52:09.198753 (system/org.foldingathome.fahclient [27967]) <Notice>: xpcproxy spawned with pid 27967
2025-11-23 13:52:09.198775 (system/org.foldingathome.fahclient [27967]) <Notice>: internal event: SPAWNED, code = 0
2025-11-23 13:52:09.198779 (system/org.foldingathome.fahclient [27967]) <Notice>: service state: xpcproxy
2025-11-23 13:52:09.198783 (system/org.foldingathome.fahclient [27967]) <Notice>: deferred event: domain spawn response: 0
2025-11-23 13:52:09.198788 (system/org.foldingathome.fahclient [27967]) <Notice>: internal event: SOURCE_ATTACH, code = 0
2025-11-23 13:52:09.211862 (system/org.foldingathome.fahclient [27967]) <Notice>: service state: running
2025-11-23 13:52:09.211877 (system/org.foldingathome.fahclient [27967]) <Notice>: internal event: INIT, code = 0
2025-11-23 13:52:09.211886 (system/org.foldingathome.fahclient [27967]) <Notice>: Successfully spawned fah-client[27967] because semaphore
2025-11-23 13:52:09.223877 (pid/27967 [fah-client]) <Notice>: uncorking exec source upfront
2025-11-23 13:52:09.223910 (pid/27967 [fah-client]) <Notice>: created
2025-11-23 13:52:09.388381 (system/org.foldingathome.fahclient [27967]) <Notice>: exited due to exit(1), ran for 191ms
2025-11-23 13:52:09.388405 (system/org.foldingathome.fahclient [27967]) <Notice>: service state: exited
2025-11-23 13:52:09.388414 (system/org.foldingathome.fahclient [27967]) <Notice>: internal event: EXITED, code = 0
2025-11-23 13:52:09.388419 (system) <Notice>: service inactive: org.foldingathome.fahclient
2025-11-23 13:52:09.388448 (system/org.foldingathome.fahclient [27967]) <Notice>: service state: not running
2025-11-23 13:52:09.388455 (system/org.foldingathome.fahclient) <Notice>: Service only ran for 0 seconds. Pushing respawn out by 10 seconds.
2025-11-23 13:52:09.388542 (system/org.foldingathome.fahclient) <Notice>: internal event: WILL_SPAWN, code = 0
2025-11-23 13:52:09.388548 (system/org.foldingathome.fahclient) <Notice>: service state: spawn scheduled
2025-11-23 13:52:09.388552 (system/org.foldingathome.fahclient) <Notice>: service spawn deferred by 10 seconds due to throttle
2025-11-23 13:52:09.388563 (pid/27967 [fah-client]) <Notice>: shutting down
2025-11-23 13:52:09.388570 (pid/27967 [fah-client]) <Notice>: cleaning up

That's just a small excerpt - no idea what it means...

Are you using http/https proxies?

I'm not sure what that means.
The browser is pointing at https...
That console dump appears to suggest that the service is starting and running for a fraction of a second and then stopping...

Is the client log.txt empty?

After a little searching, it seems xpcproxy is possibly both a part of macOS security and a bit of adware installed in multiple browsers.

I see that same notice about xpcproxy in launchd.log when fahclient starts. It's definitely part of MacOS, in /usr/libexec.

One thing that's different - I don't see that message about "deferred event: domain spawn response"; instead a couple lines down I see "job state = running". I did have a work unit already in progress that I stopped & restarted, though, so maybe that would explain the difference.

2025-11-24 20:13:06.736510 (system/org.foldingathome.fahclient [10535]) <Notice>: xpcproxy spawned with pid 10535
2025-11-24 20:13:06.736550 (system/org.foldingathome.fahclient [10535]) <Notice>: internal event: SPAWNED, code = 0
2025-11-24 20:13:06.736553 (system/org.foldingathome.fahclient [10535]) <Notice>: service state: xpcproxy
2025-11-24 20:13:06.736621 (system/org.foldingathome.fahclient [10535]) <Notice>: internal event: SOURCE_ATTACH, code = 0
2025-11-24 20:13:06.749954 (system/org.foldingathome.fahclient [10535]) <Notice>: service state: running
2025-11-24 20:13:06.749971 (system/org.foldingathome.fahclient [10535]) <Notice>: internal event: INIT, code = 0
2025-11-24 20:13:06.749975 (system/org.foldingathome.fahclient [10535]) <Notice>: job state = running
2025-11-24 20:13:06.749989 (system/org.foldingathome.fahclient [10535]) <Notice>: Successfully spawned fah-client[10535] because one-shot
2025-11-24 20:13:06.759326 (pid/10535 [fah-client]) <Notice>: uncorking exec source upfront
2025-11-24 20:13:06.759353 (pid/10535 [fah-client]) <Notice>: created

This is what I get from client --info
***************************** Folding@home Client ******************************
Version: 8.4.9
Author: Joseph Coffland <joseph@cauldrondevelopment.com>
Org: foldingathome.org
Copyright: 2023-2024, foldingathome.org
Homepage: https://foldingathome.org/
License: GPL-3.0-or-later
URL: https://v8-4.foldingathome.org/
Date: Nov 20 2024
Time: 14:47:37
Revision: 360fe71b1bd05bb89814bfb97b73a5bda84802d6
Branch: master
Compiler: GNU Apple LLVM 14.0.0 (clang-1400.0.29.202)
Options: -std=c++17 -fsigned-char -stdlib=libc++ -O3 -funroll-loops -fno-pie
-arch x86_64 -arch arm64 -mmacosx-version-min=10.13
Platform: darwin 21.6.0
Bits: 64
Mode: Release
Args: --info
************************************ CBang *************************************
Version: 1.7.2
Author: Joseph Coffland <joseph@cauldrondevelopment.com>
Org: Cauldron Development
Copyright: Cauldron Development, 2003-2024
Homepage: https://cauldrondevelopment.com/
License: LGPL-2.1-or-later
Date: Nov 20 2024
Time: 08:59:26
Revision: 443c54e909eb8d8994405a18fb328b5b05a623a5
Branch: master
Compiler: GNU Apple LLVM 14.0.0 (clang-1400.0.29.202)
Options: -std=c++17 -fsigned-char -stdlib=libc++ -O3 -funroll-loops -fno-pie
-arch x86_64 -arch arm64 -mmacosx-version-min=10.13 -fPIC
Platform: darwin 21.6.0
Bits: 64
Mode: Release
************************************ System ************************************
CPU: Apple M2 Max
CPU ID: Apple Family 8 Model 0 Stepping 0
CPUs: 12
Memory: 32.00GiB
Free Memory: 386.42MiB
OS Version: 26.1
Has Battery: false
On Battery: false
Hostname: Pauls-Mac-Studio.local
UTC Offset: 0
PID: 1616
CWD: /Library/LaunchDaemons
Exec: /usr/local/bin/fah-client
********************************************************************************

Please install the debug build of 8.5.4 beta and report changes, if any.

https://foldingathome.org/beta/

Nothing obviously different...

Please post contents of
/Library/Application Support/FAHClient/log.txt

*********************** Log Started 2025-11-27T18:21:03Z ***********************
18:21:03:I1:*********************** Folding@home Client ***********************
18:21:03:I1: Version: 8.5.4
18:21:03:I1: Author: Joseph Coffland <joseph@cauldrondevelopment.com>
18:21:03:I1: Org: foldingathome.org
18:21:03:I1: Copyright: 2023-2025, foldingathome.org
18:21:03:I1: Homepage: https://foldingathome.org/
18:21:03:I1: License: GPL-3.0-or-later
18:21:03:I1: URL: https://v8-5.foldingathome.org/
18:21:03:I1: Date: Nov 10 2025
18:21:03:I1: Time: 14:41:58
18:21:03:I1: Revision: 8bdb424702669159d880d5066602c0948b29ef3b
18:21:03:I1: Branch: master
18:21:03:I1: Compiler: GNU Apple LLVM 14.0.0 (clang-1400.0.29.202)
18:21:03:I1: Options: -std=c++17 -fsigned-char -stdlib=libc++ -O3 -fPIC -arch x86_64
18:21:03:I1: -arch arm64 -mmacosx-version-min=10.13
18:21:03:I1: Platform: darwin 21.6.0
18:21:03:I1: Bits: 64
18:21:03:I1: Mode: Release
18:21:03:I1: Config: /Library/Application Support/FAHClient/config.xml
18:21:03:I1:****************************** CBang ******************************
18:21:03:I1: Version: 1.7.2
18:21:03:I1: Author: Joseph Coffland <joseph@cauldrondevelopment.com>
18:21:03:I1: Org: Cauldron Development
18:21:03:I1: Copyright: Cauldron Development, 2003-2025
18:21:03:I1: Homepage: https://cauldrondevelopment.com/
18:21:03:I1: License: LGPL-2.1-or-later
18:21:03:I1: Date: Nov 10 2025
18:21:03:I1: Time: 14:41:05
18:21:03:I1: Revision: 5868642541dd8c4a0bc2c7f9754be098fc7606bb
18:21:03:I1: Branch: master
18:21:03:I1: Compiler: GNU Apple LLVM 14.0.0 (clang-1400.0.29.202)
18:21:03:I1: Options: -std=c++17 -fsigned-char -stdlib=libc++ -O3 -fPIC -arch x86_64
18:21:03:I1: -arch arm64 -mmacosx-version-min=10.13
18:21:03:I1: Platform: darwin 21.6.0
18:21:03:I1: Bits: 64
18:21:03:I1: Mode: Release
18:21:03:I1:***************************** System ******************************
18:21:03:I1: CPU: Apple M2 Max
18:21:03:I1: CPU ID: Apple Family 8 Model 0 Stepping 0
18:21:03:I1: CPUs: 12
18:21:03:I1: Memory: 32.00GiB
18:21:03:I1:Free Memory: 176.14MiB
18:21:03:I1: OS Version: 26.1
18:21:03:I1:Has Battery: false
18:21:03:I1: On Battery: false
18:21:03:I1: Hostname: Pauls-Mac-Studio.local
18:21:03:I1: UTC Offset: 0
18:21:03:I1: PID: 2152
18:21:03:I1: CWD: /Library/Application Support/FAHClient
18:21:03:I1: Exec: /usr/local/bin/fah-client
18:21:03:I1:*******************************************************************
18:21:03:I2:<config>
18:21:03:I2: <!-- User Information -->
18:21:03:I2: <passkey v='*****'/>
18:21:03:I2: <team v='245025'/>
18:21:03:I2: <user v='Paul_M'/>
18:21:03:I2:</config>
18:21:03:I1:Opening Database
18:21:03:I1:F@H ID = ZPSWrm5WFu2op2NuGh7polA1K8jKBA_jO_V9BM9QhJg
18:21:03:I3:Loading default resource group
18:21:03:I2:Listening for HTTP on 127.0.0.1:7396
ESC[91m18:21:03:E :Exception: Failed to advance statement result: The database disk image is malformedESC[0m

The last line is concerning, but I don't know what exactly its referring to.

I am half wondering if macOS 26 is using a newer version of some database than is used by the client installer code. That could cause a problem reading that.

I have had no issues installing & running the 8.5.4 beta client on my Mac running Mac OS 26.

If you haven't already tried deleting the entire /Library/ApplicationSupport/FAHClient folder & all its contents, that would be my next suggestion. You'll have to set the client up again from scratch with your username, team, and passkey, but that might clear out whatever corrupt database it's complaining about.