Re: git: a5d1a0c9bfcc - main - kern: RACCT: Keep process credentials alive via references

From: Philip Paeps <philip_at_freebsd.org>
Date: Thu, 06 Nov 2025 09:28:26 UTC 
On 2025-11-06 12:06:58 (+0800), Olivier Certner wrote:
> The branch main has been updated by olce:
>
> URL: https://cgit.FreeBSD.org/src/commit/?id=a5d1a0c9bfcca38528b861c5afb51ea9b1696b65
>
> commit a5d1a0c9bfcca38528b861c5afb51ea9b1696b65
> Author:     Olivier Certner <olce@FreeBSD.org>
> AuthorDate: 2025-11-03 18:21:08 +0000
> Commit:     Olivier Certner <olce@FreeBSD.org>
> CommitDate: 2025-11-06 04:06:41 +0000
>
>     kern: RACCT: Keep process credentials alive via references
>
> [...]
>
>     No functional change intended.

This panics on boot:

panic: _proc_set_cred: ref 2 not 1 on cred 0xfffff80003708a80
cpuid = 15
time = 1762421052
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00ff121bb0
vpanic() at vpanic+0x136/frame 0xfffffe00ff121ce0
panic() at panic+0x43/frame 0xfffffe00ff121d40
_proc_set_cred() at _proc_set_cred+0x1bd/frame 0xfffffe00ff121d80
proc_set_cred() at proc_set_cred+0xb/frame 0xfffffe00ff121d90
sys_setloginclass() at sys_setloginclass+0xc0/frame 0xfffffe00ff121e00
amd64_syscall() at amd64_syscall+0x169/frame 0xfffffe00ff121f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00ff121f30
--- syscall (524, FreeBSD ELF64, setloginclass), rip = 0x29624a, rsp = 0x8206e2108, rbp = 0x8206e2160 ---
KDB: enter: panic
[ thread pid 18 tid 100484 ]
Stopped at      kdb_enter+0x33: movq    $0,0x12182d2(%rip)

main-n281725-744c8d554453 boots fine.
main-n281726-a5d1a0c9bfcc panics.

Philip