------------[ cut here ]------------
[    0.017553] Interrupts were enabled early
[    0.018098] WARNING: CPU: 0 PID: 0 at init/main.c:1023 start_kernel+0x30c/0x384
[    0.019162] Modules linked in:
[    0.020067] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-rc6-next-20250513 #1 PREEMPT 
[    0.020538] Hardware name: linux,dummy-virt (DT)
[    0.020887] pstate: 60000009 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.021235] pc : start_kernel+0x30c/0x384
[    0.021419] lr : start_kernel+0x30c/0x384
[    0.021593] sp : ffffae29ceb43e80
[    0.021775] x29: ffffae29ceb43e90 x28: 0000000000000000 x27: 0000000000000000
[    0.022142] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
[    0.022481] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000048000000
[    0.022796] x20: ffffae29ceb4a000 x19: ffffae29ceb55cc0 x18: 0000000000000038
[    0.023082] x17: 0000000000000000 x16: 0000000000000001 x15: 0000000000000003
[    0.023397] x14: ffffae29ceb7f2d8 x13: 0000000000000003 x12: 0000000000000003
[    0.023652] x11: 00000000ffffefff x10: c0000000ffffefff x9 : 044edebff014f600
[    0.023992] x8 : 044edebff014f600 x7 : 3335353731302e30 x6 : 202020205b3e343c
[    0.024294] x5 : ffffae29cf0bf2c3 x4 : ffffae29ceb43a3a x3 : 0000000000000000
[    0.024594] x2 : 0000000000000000 x1 : ffffae29ceb43c20 x0 : 000000000000001d
[    0.024964] Call trace:
[    0.025228]  start_kernel+0x30c/0x384 (P)
[    0.025551]  __primary_switched+0x88/0x90
[    0.025962] ---[ end trace 0000000000000000 ]---

shardfile-sigaltstack fail