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

From: Cy Schubert <Cy.Schubert_at_cschubert.com>
Date: Thu, 06 Nov 2025 14:48:15 UTC
In message <E21CD44D-00A9-4481-B729-D4E06A1F1475@freebsd.org>, Philip Paeps 
wri
tes:
> 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=3Da5d1a0c9bfcca38528b861c5=
> afb51ea9b1696b65
> >
> > 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 =3D 15
> time =3D 1762421052
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00ff1=
> 21bb0
> 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 0xfffffe00ff121f3=
> 0
> --- syscall (524, FreeBSD ELF64, setloginclass), rip =3D 0x29624a, rsp =3D=
>  0x8206e2108, rbp =3D 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.

To add a data point, only my machines with INVARIANTS does it panic.

>
> Philip
>



-- 
Cheers,
Cy Schubert <Cy.Schubert@cschubert.com>
FreeBSD UNIX:  <cy@FreeBSD.org>   Web:  https://FreeBSD.org
NTP:           <cy@nwtime.org>    Web:  https://nwtime.org

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