last executing test programs: kernel console output (not intermixed with test programs): syzkaller login: [ 961.829922][ T34] ------------[ cut here ]------------ [ 961.830924][ T34] WARNING: CPU: 1 PID: 34 at kernel/sched/deadline.c:1995 enqueue_dl_entity+0x47c/0x590 [ 961.832912][ T34] Modules linked in: [ 961.835043][ T34] CPU: 1 UID: 0 PID: 34 Comm: kcompactd0 Tainted: G B 6.11.0-syzkaller-10729-g13882369ceb9 #0 [ 961.838935][ T34] Tainted: [B]=BAD_PAGE [ 961.840447][ T34] Hardware name: linux,dummy-virt (DT) [ 961.842272][ T34] pstate: a14000c9 (NzCv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 961.844696][ T34] pc : enqueue_dl_entity+0x47c/0x590 [ 961.846465][ T34] lr : dl_server_start+0x44/0x12c [ 961.848243][ T34] sp : ffff800082eab970 [ 961.849678][ T34] x29: ffff800082eab970 x28: f3f0000004f45c00 x27: 0000000000000000 [ 961.852625][ T34] x26: 0000000000000001 x25: 0000000000000000 x24: 0000000000000048 [ 961.854955][ T34] x23: fff000007f8ee800 x22: 0000000000000001 x21: 000000000016e360 [ 961.857723][ T34] x20: 0000000000000001 x19: fff000007f8ef168 x18: 0000000000000000 [ 961.863526][ T34] x17: fff07ffffd1e0000 x16: ffff800080008000 x15: 0000000000000000 [ 961.866261][ T34] x14: 00000000000002e1 x13: 0000000000000377 x12: 0000000000000001 [ 961.869998][ T34] x11: fff000007f8ee880 x10: 0000000000000001 x9 : 0000000000000048 [ 961.871374][ T34] x8 : 0000000000100000 x7 : 0000000000000001 x6 : f3f0000004f45bc0 [ 961.872573][ T34] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 [ 961.873796][ T34] x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000001 [ 961.875059][ T34] Call trace: [ 961.875564][ T34] enqueue_dl_entity+0x47c/0x590 [ 961.876327][ T34] dl_server_start+0x44/0x12c [ 961.876987][ T34] enqueue_task_fair+0x11c/0x3a4 [ 961.877896][ T34] enqueue_task+0x58/0xbc [ 961.878586][ T34] activate_task+0x68/0x80 [ 961.879265][ T34] attach_task+0x4c/0x74 [ 961.879942][ T34] sched_balance_rq+0x488/0xc74 [ 961.880625][ T34] sched_balance_newidle.constprop.0+0x1b0/0x3e4 [ 961.881390][ T34] pick_next_task_fair+0x50/0x320 [ 961.882130][ T34] __schedule+0x158/0x8e8 [ 961.882754][ T34] schedule+0x34/0x104 [ 961.883359][ T34] schedule_timeout+0x80/0xf4 [ 961.884029][ T34] kcompactd+0x204/0x374 [ 961.884674][ T34] kthread+0x114/0x118 [ 961.885334][ T34] ret_from_fork+0x10/0x20 [ 961.886774][ T34] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:35820' (ED25519) to the list of known hosts. [ 1014.168751][ T3274] cgroup: Unknown subsys name 'net' [ 1014.492304][ T3274] cgroup: Unknown subsys name 'cpuset' [ 1014.520630][ T3274] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 1015.338570][ T3274] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) VM DIAGNOSIS: 06:38:40 Registers: info registers vcpu 0 CPU#0 PC=ffff800080010c00 X00=0000aaaacd1d2100 X01=0000aaaacd1d2010 X02=0000000000000000 X03=0000000000000000 X04=000000000000003c X05=0000000000000000 X06=0000000000000000 X07=0000000000000000 X08=0000000000000000 X09=0000000000000000 X10=0000000000000000 X11=0000000000000000 X12=0000000000000000 X13=0000000000000000 X14=0000000000000000 X15=0000000000000000 X16=0000ffffab1f1d68 X17=0000ffffab11c114 X18=0000000000000000 X19=0000aaaacd1f5ea0 X20=0000ffffab5127e0 X21=00000000000001f8 X22=0000000000000138 X23=0000aaaacb1887fd X24=0000000000000000 X25=0000000000000026 X26=0000000000000100 X27=0000ffffab5127e0 X28=0000ffffebd20f28 X29=0000ffffebd207c0 X30=0000ffffab11c144 SP=ffff80008927c000 PSTATE=024003c9 ---- EL2h SVCR=00000000 -- BTYPE=0 FPCR=00000000 FPSR=00000000 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=0000ffffebd20a60:0000ffffebd20a60 Z01=ffffff80ffffffd8:0000ffffebd20a30 Z02=0000000000000000:0000000000000000 Z03=0000000000000000:0000000000000000 Z04=0000000000000000:0000000000000000 Z05=0000000000000000:0000000000000000 Z06=0000000000000000:0000000000000000 Z07=0000000000000000:0000000000000000 Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000 Z17=0000000000000000:0000000000000000 Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000000 info registers vcpu 1 CPU#1 PC=ffff800081a35fe0 X00=00000000000117f4 X01=fff000007f8e9d18 X02=fff07ffffd1e0000 X03=ffff800082b7bdd0 X04=fff07ffffd1e0000 X05=4000000000000000 X06=000000000171c2b9 X07=0000000000000004 X08=f3f000000323ff58 X09=ab372972391f3937 X10=6c21950078e7f473 X11=0000000000000001 X12=ffff800082730078 X13=0000000000000139 X14=0000000000000139 X15=ffff8000800afd94 X16=ffff8000800b0190 X17=ffff8000800b0204 X18=ffff80008929bc30 X19=0000000000000001 X20=ffff800082730030 X21=f3f000000323ed80 X22=ffff800082730070 X23=0000000000000000 X24=0000000000000000 X25=f3f000000323ed80 X26=0000000000000000 X27=0000000000000000 X28=0000000000000000 X29=ffff800082b7bdf0 X30=ffff800081a35ff4 SP=ffff800082b7bdf0 PSTATE=614000c9 -ZC- EL2h SVCR=00000000 -- BTYPE=0 FPCR=00000000 FPSR=00000000 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=0000000000000000:0000000000000000 Z01=0000000000000000:0000000000000000 Z02=0000000000000000:0000000000000000 Z03=0000000000000000:0000000000000000 Z04=0000000000000000:0000000000000000 Z05=0000000000000000:0000000000000000 Z06=0000000000000000:0000000000000000 Z07=0000000000000000:0000000000000000 Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000 Z17=0000000000000000:0000000000000000 Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000000