panic: kernel diagnostic assertion "pg->wire_count == 1" failed : file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310 Starting stack trace... panic(ffffffff830afb12) at panic+0x1ba sys/kern/subr_prf.c:229 __assert(ffffffff83067464,ffffffff83077cc6,136,ffffffff82ff26ea) at __assert+0x29 buf_free_pages(fffffd805f038d28) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd805f038d28) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd805f038d28) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd805f038d28) at brelse+0x395 sys/kern/vfs_bio.c:944 vinvalbuf(fffffd80706cae88,3,fffffd807f7d7208,ffff80002a4d0f50,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2022 ffs_truncate(fffffd80567d4a60,100000000,4,fffffd807f7d7208) at ffs_truncate+0xf63 ffs_write(ffff80003760d640) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd80706cae88,ffff80003760d7e8,7,fffffd807f7d7208) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd805b7d5f08,ffff80003760d7e8,0) at vn_write+0x1c3 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80002a4d0f50,4,ffff80003760d7e8,0,ffff80003760d8a0) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_write(ffff80002a4d0f50,ffff80003760d950,ffff80003760d8a0) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003760d950) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x23b71d0c8d0, count: 242 End of stack trace.