panic: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_biomem.c", line 310 Starting stack trace... panic(ffffffff8295389f) at panic+0x16f sys/kern/subr_prf.c:229 __assert(ffffffff82906cce,ffffffff828a70c5,136,ffffffff8288ca8d) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80770b4020) at buf_free_pages+0x1d0 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80770b4020) at buf_dealloc_mem+0xe2 sys/kern/vfs_biomem.c:179 buf_put(fffffd80770b4020) at buf_put+0x15e sys/kern/vfs_bio.c:127 brelse(fffffd80770b4020) at brelse+0x26b sys/kern/vfs_bio.c:944 vinvalbuf(fffffd80672cc720,2,ffffffffffffffff,ffff80002a225238,0,ffffffffffffffff) at vinvalbuf+0x3b8 sys/kern/vfs_subr.c:2025 ffs_truncate(fffffd8072766000,0,0,ffffffffffffffff) at ffs_truncate+0xba2 ufs_inactive(ffff80002acf63d8) at ufs_inactive+0x16a sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd80672cc720,ffff80002a225238) at VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:489 vrele(fffffd80672cc720) at vrele+0xd5 sys/kern/vfs_subr.c:827 ktrwriteraw(ffff80002a225238,fffffd80672cc720,fffffd807f7d78f0,ffff80002acf6580,ffff80002acf6560) at ktrwriteraw+0x2b4 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002a225238,fffffd80672cc720,fffffd807f7d78f0,ffff80002acf6580,ffff80002acf6560) at ktrwriteraw+0x2b4 sys/kern/kern_ktrace.c:701 ktrsysret(ffff80002a225238,5b,0,ffff80002acf6650) at ktrsysret+0x167 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline] ktrsysret(ffff80002a225238,5b,0,ffff80002acf6650) at ktrsysret+0x167 sys/kern/kern_ktrace.c:206 syscall(ffff80002acf6700) at syscall+0x7c0 mi_syscall_return sys/sys/syscall_mi.h:210 [inline] syscall(ffff80002acf6700) at syscall+0x7c0 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x726492f95810, count: 242 End of stack trace.