Created attachment 2122381 [details]
gzip's flat file containing the log of system activity up to the freeze/crash.

1. Please describe the problem:

Running a locally built but otherwise NOT MODIFIED Linux kernel "linux-6.19-rc5" and building the "latest" gcc from the gcc repo generates msg "kernel BUG at kernel/irq_work.c:245!".

The rc4 version of this kernel does NOT fail. The build process is the SAME in both cases.

2. What is the Version-Release number of the kernel:

linux-6.19-rc5

3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at
   https://koji.fedoraproject.org/koji/packageinfo?packageID=8 :

This problem appeared in the rc5 version of the kernel, the rc4 version of this kernel does NOT fail

4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:

Yes

Build gcc and gmp, mpfr, isl, and mpc. The build log up to the point of the freeze/crash is available for this situation.

5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:

Not as far as I can tell.

6. Are you running any modules that not shipped with directly Fedora's kernel?:

No

7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.