I started seeing this bug on my tumbleweed system:
...
2021-07-07T16:24:41.803560+02:00 lena kernel: [1053710.804959] CPU: 3 PID:
31988 Comm: gdb Tainted: G      D           5.12.10-1-default #1 openSUSE
Tumbleweed
Message from syslogd@lena at Jul 19 16:18:29 ...
 kernel:[722585.589404] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0
nice=0 stuck for inted: G      D           5.12.10-1-default #1 openSUSE
Tumbleweed
2021-07-07T16:24:41.803561+02:00 lena kernel: [1053710.804964] Hardware name:
LENOVO 20F5S0KF00/20F5S0KF00, BIOS R02ET73W (1.46 ) 01/08/2020
2021-07-07T16:24:41.803563+02:00 lena kernel: [1053710.804966] Call Trace:
2021-07-07T16:24:41.803564+02:00 lena kernel: [1053710.804971] 
dump_stack+0x76/0x94
2021-07-07T16:24:41.803566+02:00 lena kernel: [1053710.804978] 
bad_page.cold+0x9b/0xa0
2021-07-07T16:24:41.803567+02:00 lena kernel: [1053710.804983] 
get_page_from_freelist+0x739/0x13a0
2021-07-07T16:24:41.803568+02:00 lena kernel: [1053710.804990] 
__alloc_pages_nodemask+0x161/0x310
2021-07-07T16:24:41.803569+02:00 lena kernel: [1053710.804993] 
pagecache_get_page+0x14c/0x4f0
2021-07-07T16:24:41.803570+02:00 lena kernel: [1053710.805000] 
grab_cache_page_write_begin+0
      7-07T16:24:41.803572+02:00 lena kernel: [1053710.805009] 
iomap_write_actor+0x9f/0x1a0
2021-07-07T16:24:41.803573+02:00 lena kernel: [1053710.805013] 
iomap_apply+0x111/0x2e0
2021-07-07T16:24:41.803575+02:00 lena kernel: [1053710.805015]  ?
iomap_write_end+0x260/0x260
2021-07-07T16:24:41.803576+02:00 lena kernel: [1053710.805020] 
iomap_file_buffered_write+0x5c/0x80
2021-07-07T16:24:41.803577+02:00 lena kernel: [1053710.805023]  ?
iomap_write_end+0x260/0x260
2021-07-07T16:24:41.803578+02:00 lena kernel: [1053710.805026] 
xfs_file_buffered_write+0xbd/0x2b0 [xfs]
2021-07-07T16:24:41.803579+02:00 lena kernel: [1053710.805122]  ?
_flat_send_IPI_mask+0x21/0x40
2021-07-07T16:24:41.803580+02:00 lena kernel: [1053710.805128]  ?
generic_exec_single+0x50/0xc0
2021-07-07T16:24:41.803582+02:00 lena kernel: [1053710.805133]  ?
smp_call_function_single_async+0x17/0x20
2021-07-07T16:24:41.803583+02:00 lena kernel: [1053710.805138] 
new_sync_write+0x11c/0x1b0
2021-07-07T16:24:41.803583+02:00 lena kernel: [1053710.805143] 
vfs_write+0x1b8/0x270
2021-07-07T16:24:41.803585+02:00 lena kernel: [1053710.805146] 
ksys_write+0x5f/0xe0
2021-07-07T16:24:41.803586+02:00 lena kernel: [1053710.805150] 
do_syscall_64+0x33/0x80
2021-07-07T16:24:41.803587+02:00 lena kernel: [1053710.805155] 
entry_SYSCALL_64_after_hwframe+0x44/0xae
2021-07-07T16:24:41.803588+02:00 lena kernel: [1053710.805159] RIP:
0033:0x7fc4b3b4539f
2021-07-07T16:24:41.803589+02:00 lena kernel: [1053710.805162] Code: 89 54 24
18 48 89 74 24 10 89 7c 24 08 e8 b9 49 f9 ff 48 8b 54 24 18 48 8b 74 24 10 41
89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89
44 24 08 e8 0c 4a f9 ff 48
2021-07-07T16:24:41.803590+02:00 lena kernel: [1053710.805167] RSP:
002b:00007fff61dfb5f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
2021-07-07T16:24:41.803592+02:00 lena kernel: [1053710.805171] RAX:
ffffffffffffffda RBX: 0000000000001000 RCX: 00007fc4b3b4539f
2021-07-07T16:24:41.803592+02:00 lena kernel: [1053710.805174] RDX:
0000000000001000 RSI: 0000000001f9fe90 RDI: 000000000000000e
2021-07-07T16:24:41.803593+02:00 lena kernel: [1053710.805177] RBP:
0000000001f9fe90 R08: 0000000000000000 R09: 00007fff61dfbb30
2021-07-07T16:24:41.803594+02:00 lena kernel: [1053710.805180] R10:
0000000001a44440 R11: 0000000000000293 R12: 0000000000001000
2021-07-07T16:24:41.803596+02:00 lena kernel: [1053710.805182] R13:
00000000018442a0 R14: 0000000000001000 R15: 00007fc4b3c18700
...

This is with kernel:
...
$ uname -a
Linux lena 5.12.13-1-default #1 SMP Mon Jun 28 06:37:23 UTC 2021 (74bd8c0)
x86_64 x86_64 x86_64 GNU/Linux
...

It happens during a build and test run of gdb.

I've updated and rebooted to kernel version 5.13.0-1-default, but ran into the
same bug.