uvm_fault(0xffffffff83aba540, 0xffff800013762004, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs_fragextend+0x1c8: movl 0x4(%rbx),%r14d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
116725 2964 0 0 0x4000000 1 syz-executor
*441898 39122 0 0x2 0x1 0K syz-executor
ffs_fragextend(fffffd806e470e58,3,60bdd,800,1000) at ffs_fragextend+0x1c8 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline]
ffs_fragextend(fffffd806e470e58,3,60bdd,800,1000) at ffs_fragextend+0x1c8 sys/ufs/ffs/ffs_alloc.c:890
ffs_realloccg(fffffd806e470e58,6,4cc30,800,1000,fffffd80097fd340,41e5693eb2f53b29,fffffd80619cda70) at ffs_realloccg+0x53a sys/ufs/ffs/ffs_alloc.c:225
ffs2_balloc(fffffd806e470e58,187e7,50,fffffd80097fd340,1,ffff80002a2c8648) at ffs2_balloc+0x54d sys/ufs/ffs/ffs_balloc.c:516
ffs_write(ffff80002a2c86d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805d1466c0,ffff80002a2c8780,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff80002a2227d8,fffffd805d1466c0,fffffd80097fd340,ffff80002a2c8850,ffff80002a2c8830) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:692
ktrsysret(ffff80002a2227d8,b,0,ffff80002a2c8920) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff80002a2227d8,b,0,ffff80002a2c8920) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a2c89d0) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a2c89d0) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x74b9aaa16f40, count: 6
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