[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.631272] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.591728] random: sshd: uninitialized urandom read (32 bytes read) [ 23.896786] random: sshd: uninitialized urandom read (32 bytes read) [ 24.606900] random: sshd: uninitialized urandom read (32 bytes read) [ 198.953180] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. [ 204.351508] random: sshd: uninitialized urandom read (32 bytes read) [ 204.447716] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.472006] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.495082] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.518639] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.536167] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.553742] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.564358] print_req_error: I/O error, dev loop0, sector 264128 [ 204.564536] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.587655] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.612150] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.622843] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 204.655077] print_req_error: I/O error, dev loop0, sector 0 [ 204.675759] print_req_error: I/O error, dev loop0, sector 0 [ 204.704825] print_req_error: I/O error, dev loop0, sector 120 [ 204.840288] print_req_error: I/O error, dev loop0, sector 0 [ 204.868782] print_req_error: I/O error, dev loop0, sector 0 [ 204.931221] print_req_error: I/O error, dev loop0, sector 264184 [ 204.971832] print_req_error: I/O error, dev loop0, sector 56 [ 205.013791] print_req_error: I/O error, dev loop0, sector 0 [ 205.098744] print_req_error: I/O error, dev loop0, sector 264184 [ 206.666384] Buffer I/O error on dev loop0, logical block 1, async page read [ 206.788185] Buffer I/O error on dev loop0, logical block 0, async page read [ 207.012124] Buffer I/O error on dev loop0, logical block 8, async page read [ 207.324159] Buffer I/O error on dev loop0, logical block 33023, async page read [ 207.379086] Buffer I/O error on dev loop0, logical block 7, async page read [ 207.728948] Buffer I/O error on dev loop0, logical block 0, async page read [ 208.484107] Buffer I/O error on dev loop0, logical block 7, async page read [ 208.604130] Buffer I/O error on dev loop0, logical block 0, async page read [ 208.915983] Buffer I/O error on dev loop0, logical block 0, async page read [ 208.955963] Buffer I/O error on dev loop0, logical block 15, async page read [ 209.450945] EXT4-fs: 427 callbacks suppressed [ 209.450954] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.471600] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.483722] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.506517] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.535264] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.557301] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.579583] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.605386] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.631353] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.655834] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 209.685897] print_req_error: 77 callbacks suppressed [ 209.685921] print_req_error: I/O error, dev loop0, sector 0 [ 209.736974] print_req_error: I/O error, dev loop0, sector 0 [ 209.768944] print_req_error: I/O error, dev loop0, sector 264184 [ 209.840908] print_req_error: I/O error, dev loop0, sector 8 [ 209.881907] print_req_error: I/O error, dev loop0, sector 0 [ 209.914157] print_req_error: I/O error, dev loop0, sector 0 [ 209.978909] print_req_error: I/O error, dev loop0, sector 0 [ 210.023930] print_req_error: I/O error, dev loop0, sector 56 [ 210.079920] print_req_error: I/O error, dev loop0, sector 56 [ 210.110919] print_req_error: I/O error, dev loop0, sector 0 [ 212.147182] buffer_io_error: 15 callbacks suppressed [ 212.147191] Buffer I/O error on dev loop0, logical block 0, async page read [ 212.183960] Buffer I/O error on dev loop0, logical block 0, async page read [ 212.214957] Buffer I/O error on dev loop0, logical block 0, async page read [ 212.342940] Buffer I/O error on dev loop0, logical block 0, async page read [ 212.595013] Buffer I/O error on dev loop0, logical block 0, async page read [ 212.837174] Buffer I/O error on dev loop0, logical block 1, async page read [ 213.326191] Buffer I/O error on dev loop0, logical block 3, async page read [ 213.409015] Buffer I/O error on dev loop0, logical block 0, async page read [ 213.484136] Buffer I/O error on dev loop0, logical block 0, async page read [ 213.670164] Buffer I/O error on dev loop0, logical block 0, async page read [ 214.456569] EXT4-fs: 393 callbacks suppressed [ 214.456579] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.472577] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.492386] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.523191] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.537474] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.555425] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.580711] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.600968] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.611743] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.630482] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 214.749176] print_req_error: 130 callbacks suppressed [ 214.749185] print_req_error: I/O error, dev loop0, sector 0 [ 214.786925] print_req_error: I/O error, dev loop0, sector 0 [ 214.827165] print_req_error: I/O error, dev loop0, sector 264184 [ 214.878922] print_req_error: I/O error, dev loop0, sector 0 [ 214.910010] print_req_error: I/O error, dev loop0, sector 0 [ 214.940858] print_req_error: I/O error, dev loop0, sector 0 [ 215.064880] print_req_error: I/O error, dev loop0, sector 0 [ 215.095897] print_req_error: I/O error, dev loop0, sector 0 [ 215.137885] print_req_error: I/O error, dev loop0, sector 24 [ 215.217953] print_req_error: I/O error, dev loop0, sector 0 [ 217.893965] buffer_io_error: 29 callbacks suppressed [ 217.893974] Buffer I/O error on dev loop0, logical block 0, async page read [ 217.931957] Buffer I/O error on dev loop0, logical block 0, async page read [ 218.143240] Buffer I/O error on dev loop0, logical block 33023, async page read [ 218.797934] Buffer I/O error on dev loop0, logical block 0, async page read [ 219.030195] Buffer I/O error on dev loop0, logical block 0, async page read [ 219.109014] Buffer I/O error on dev loop0, logical block 0, async page read [ 219.458223] EXT4-fs: 385 callbacks suppressed [ 219.458233] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.476170] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.488454] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.509949] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.538201] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.550709] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.569053] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.579353] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.590780] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.614194] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 219.971864] print_req_error: 78 callbacks suppressed [ 219.971873] print_req_error: I/O error, dev loop0, sector 0 [ 220.175120] print_req_error: I/O error, dev loop0, sector 264184 [ 220.495404] print_req_error: I/O error, dev loop0, sector 264184 [ 220.915012] print_req_error: I/O error, dev loop0, sector 2048 [ 220.947057] print_req_error: I/O error, dev loop0, sector 264184 [ 221.189227] print_req_error: I/O error, dev loop0, sector 56 [ 221.219881] print_req_error: I/O error, dev loop0, sector 264184 [ 221.719913] print_req_error: I/O error, dev loop0, sector 264184 [ 221.860953] print_req_error: I/O error, dev loop0, sector 264184 [ 221.892980] print_req_error: I/O error, dev loop0, sector 264184 [ 222.995115] Buffer I/O error on dev loop0, logical block 33023, async page read [ 223.483323] Buffer I/O error on dev loop0, logical block 33023, async page read [ 224.474481] EXT4-fs: 386 callbacks suppressed [ 224.474490] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.489272] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.509450] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.523723] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.550987] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.561565] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.584479] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.595374] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.616798] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.636450] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 224.972950] print_req_error: 13 callbacks suppressed [ 224.972959] print_req_error: I/O error, dev loop0, sector 0 [ 225.008860] print_req_error: I/O error, dev loop0, sector 264184 [ 225.045871] print_req_error: I/O error, dev loop0, sector 0 [ 225.111085] print_req_error: I/O error, dev loop0, sector 264184 [ 225.151922] print_req_error: I/O error, dev loop0, sector 0 [ 225.182941] print_req_error: I/O error, dev loop0, sector 264184 [ 225.946110] print_req_error: I/O error, dev loop0, sector 264184 [ 226.046068] print_req_error: I/O error, dev loop0, sector 264184 [ 226.123532] print_req_error: I/O error, dev loop0, sector 2048 [ 226.297906] print_req_error: I/O error, dev loop0, sector 0 [ 229.493941] EXT4-fs: 382 callbacks suppressed [ 229.493951] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.516668] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.542733] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.562646] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.585627] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.598614] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.616066] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.626751] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.653381] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 229.667620] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 230.304248] print_req_error: 14 callbacks suppressed [ 230.304256] print_req_error: I/O error, dev loop0, sector 0 [ 230.450075] print_req_error: I/O error, dev loop0, sector 264184 [ 230.592920] print_req_error: I/O error, dev loop0, sector 264184 [ 230.732902] print_req_error: I/O error, dev loop0, sector 264184 [ 230.845965] print_req_error: I/O error, dev loop0, sector 264184 [ 230.877125] print_req_error: I/O error, dev loop0, sector 264184 [ 230.934167] print_req_error: I/O error, dev loop0, sector 264184 [ 231.010905] print_req_error: I/O error, dev loop0, sector 264184 [ 231.571951] print_req_error: I/O error, dev loop0, sector 264184 [ 233.128279] print_req_error: I/O error, dev loop0, sector 264184 [ 234.494279] EXT4-fs: 380 callbacks suppressed [ 234.494287] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.517983] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.529444] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.548610] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.574432] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.587781] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.598582] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.625303] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.648726] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 234.670416] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 236.429956] print_req_error: 3 callbacks suppressed [ 236.429965] print_req_error: I/O error, dev loop0, sector 264184 [ 236.884324] print_req_error: I/O error, dev loop0, sector 264184 [ 237.779356] print_req_error: I/O error, dev loop0, sector 264184 [ 238.209511] print_req_error: I/O error, dev loop0, sector 264184 [ 239.495881] EXT4-fs: 385 callbacks suppressed [ 239.495888] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.520224] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.545377] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.558314] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.581611] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.605433] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.616694] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.644392] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.668158] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 239.681501] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 241.720449] print_req_error: I/O error, dev loop0, sector 264184 [ 244.498196] EXT4-fs: 379 callbacks suppressed [ 244.498204] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.520689] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.548237] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.560543] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.572654] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.598012] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.619927] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.643489] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.669011] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 244.695012] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.502356] EXT4-fs: 386 callbacks suppressed [ 249.502365] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.516195] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.534596] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.558807] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.583774] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.595727] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.615772] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.642660] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.668382] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 249.693666] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 250.325266] print_req_error: I/O error, dev loop0, sector 264184 [ 251.831115] print_req_error: I/O error, dev loop0, sector 264184 [ 252.321190] print_req_error: I/O error, dev loop0, sector 264184 [ 253.166981] print_req_error: I/O error, dev loop0, sector 264184 [ 253.343197] print_req_error: I/O error, dev loop0, sector 264184 [ 254.511643] EXT4-fs: 384 callbacks suppressed [ 254.511651] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.528568] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.541009] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.563605] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.589647] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.611403] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.632619] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.657640] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.677437] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 254.706249] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 256.104264] print_req_error: I/O error, dev loop0, sector 264184 [ 256.488078] print_req_error: I/O error, dev loop0, sector 264184 [ 258.673227] print_req_error: I/O error, dev loop0, sector 264184 [ 259.519045] EXT4-fs: 383 callbacks suppressed [ 259.519053] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.537100] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.562998] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.574522] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.600592] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.626982] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.654086] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.668363] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.699980] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 259.712762] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.525406] EXT4-fs: 384 callbacks suppressed [ 264.525414] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.544491] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.558773] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.588963] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.603680] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.624908] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.647789] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.679076] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.692397] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 264.716262] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 265.273311] print_req_error: I/O error, dev loop0, sector 264184 [ 266.900625] print_req_error: I/O error, dev loop0, sector 264184 [ 267.439148] print_req_error: I/O error, dev loop0, sector 264184 [ 269.533665] EXT4-fs: 383 callbacks suppressed [ 269.533673] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.554294] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.576282] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.600273] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.613191] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.638105] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.657821] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.686437] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.710795] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 269.723738] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 272.282598] print_req_error: I/O error, dev loop0, sector 264184 [ 272.804403] print_req_error: I/O error, dev loop0, sector 264184 [ 273.166482] print_req_error: I/O error, dev loop0, sector 264184 [ 273.977407] print_req_error: I/O error, dev loop0, sector 264184 [ 274.136235] print_req_error: I/O error, dev loop0, sector 264184 [ 274.220459] print_req_error: I/O error, dev loop0, sector 264184 [ 274.536270] EXT4-fs: 372 callbacks suppressed [ 274.536277] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.558532] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.570640] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.593474] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.618820] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.630069] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.656624] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.668212] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.694220] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 274.714239] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 275.821375] print_req_error: I/O error, dev loop0, sector 264184 [ 276.155356] print_req_error: I/O error, dev loop0, sector 264184 [ 276.223286] print_req_error: I/O error, dev loop0, sector 264184 [ 277.903303] print_req_error: I/O error, dev loop0, sector 264184 [ 278.204313] print_req_error: I/O error, dev loop0, sector 264184 [ 278.466353] print_req_error: I/O error, dev loop0, sector 264184 [ 278.586426] print_req_error: I/O error, dev loop0, sector 264184 [ 278.876292] print_req_error: I/O error, dev loop0, sector 264184 [ 279.546334] EXT4-fs: 374 callbacks suppressed [ 279.546342] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.570361] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.582985] print_req_error: I/O error, dev loop0, sector 0 [ 279.583694] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.607484] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.618857] print_req_error: I/O error, dev loop0, sector 264184 [ 279.619512] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.644778] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.672165] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.692768] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.717324] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 279.741337] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.548402] EXT4-fs: 371 callbacks suppressed [ 284.548410] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.572884] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.600205] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.625687] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.643968] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.668808] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.691520] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.703619] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.717097] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 284.740077] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 288.172541] print_req_error: I/O error, dev loop0, sector 264184 [ 289.564014] EXT4-fs: 367 callbacks suppressed [ 289.568714] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.594799] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.615182] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.640793] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.662660] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.687208] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.710482] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.738364] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.763216] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 289.788634] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 290.200611] print_req_error: I/O error, dev loop0, sector 264184 [ 292.271412] print_req_error: I/O error, dev loop0, sector 264184 [ 293.259376] print_req_error: I/O error, dev loop0, sector 264184 [ 294.364436] print_req_error: I/O error, dev loop0, sector 264184 [ 294.573502] EXT4-fs: 361 callbacks suppressed [ 294.573511] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.599086] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.611265] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.635763] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.663272] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.685293] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.711968] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.738887] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.755638] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 294.775630] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 295.527421] print_req_error: I/O error, dev loop0, sector 264184 [ 295.719304] print_req_error: I/O error, dev loop0, sector 264184 [ 296.413301] print_req_error: I/O error, dev loop0, sector 264184 [ 297.282507] print_req_error: I/O error, dev loop0, sector 264184 [ 297.537480] print_req_error: I/O error, dev loop0, sector 264184 [ 298.066486] print_req_error: I/O error, dev loop0, sector 264184 [ 299.402714] print_req_error: I/O error, dev loop0, sector 0 [ 299.584689] EXT4-fs: 354 callbacks suppressed [ 299.584699] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.609476] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.631454] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.642696] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.668192] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.679712] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.700163] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.726810] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.751652] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.775867] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 299.981622] print_req_error: I/O error, dev loop0, sector 64 [ 300.336636] print_req_error: I/O error, dev loop0, sector 120 [ 300.676554] print_req_error: I/O error, dev loop0, sector 264184 [ 300.731559] print_req_error: I/O error, dev loop0, sector 0 [ 304.059407] print_req_error: I/O error, dev loop0, sector 264184 [ 304.589782] EXT4-fs: 356 callbacks suppressed [ 304.589790] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.609150] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.619474] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.648388] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.667293] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.691054] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.719633] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.743491] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.765270] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.791113] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 304.996592] print_req_error: I/O error, dev loop0, sector 264184 [ 305.224987] print_req_error: I/O error, dev loop0, sector 264184 [ 305.539194] print_req_error: I/O error, dev loop0, sector 264184 [ 306.441456] print_req_error: I/O error, dev loop0, sector 264184 [ 309.090546] print_req_error: I/O error, dev loop0, sector 8 [ 309.594378] EXT4-fs: 358 callbacks suppressed [ 309.594386] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.612750] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.624508] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.649986] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.677237] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.703178] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.724110] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.748532] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.760420] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 309.787164] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 310.876090] print_req_error: I/O error, dev loop0, sector 264184 [ 311.059418] print_req_error: I/O error, dev loop0, sector 264184 [ 312.260570] print_req_error: I/O error, dev loop0, sector 0 [ 312.528514] print_req_error: I/O error, dev loop0, sector 264184 [ 312.993659] print_req_error: I/O error, dev loop0, sector 264184 [ 313.229641] print_req_error: I/O error, dev loop0, sector 264184 [ 314.595458] EXT4-fs: 367 callbacks suppressed [ 314.595466] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.623981] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.651839] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.665321] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.684626] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.714267] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.735758] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.763806] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.783890] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 314.805268] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 316.098083] print_req_error: I/O error, dev loop0, sector 264184 [ 317.014482] print_req_error: I/O error, dev loop0, sector 264184 [ 317.359518] print_req_error: I/O error, dev loop0, sector 264184 [ 318.970623] print_req_error: I/O error, dev loop0, sector 264184 [ 319.194645] print_req_error: I/O error, dev loop0, sector 24 [ 319.596512] EXT4-fs: 361 callbacks suppressed [ 319.596520] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.621911] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.647753] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.672722] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.697123] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.722384] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.747873] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.773153] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 319.783681] [ 319.785317] ================================ [ 319.789704] WARNING: inconsistent lock state [ 319.794086] 4.17.0-rc2+ #18 Not tainted [ 319.798032] -------------------------------- [ 319.802413] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. [ 319.808532] loop0/18552 [HC1[1]:SC0[0]:HE0:SE1] takes: [ 319.813783] (ptrval) (fs_reclaim){?.+.}, at: fs_reclaim_acquire.part.82+0x0/0x30 [ 319.821997] {HARDIRQ-ON-W} state was registered at: [ 319.827082] lock_acquire+0x1dc/0x520 [ 319.830944] fs_reclaim_acquire.part.82+0x24/0x30 [ 319.835847] fs_reclaim_acquire+0x14/0x20 [ 319.840058] kmem_cache_alloc_node_trace+0x39/0x770 [ 319.845134] alloc_worker+0xbd/0x2e0 [ 319.848908] init_rescuer.part.25+0x1f/0x190 [ 319.853379] workqueue_init+0x51f/0x7d0 [ 319.857414] kernel_init_freeable+0x2ad/0x58e [ 319.861973] kernel_init+0x11/0x1b3 [ 319.865676] ret_from_fork+0x3a/0x50 [ 319.869450] irq event stamp: 1768 [ 319.872881] hardirqs last enabled at (1767): [] ktime_get+0x33e/0x430 [ 319.881082] hardirqs last disabled at (1768): [] interrupt_entry+0xb5/0xf0 [ 319.889634] softirqs last enabled at (1500): [] __do_softirq+0x778/0xaf5 [ 319.898103] softirqs last disabled at (1479): [] irq_exit+0x1d1/0x200 [ 319.906213] [ 319.906213] other info that might help us debug this: [ 319.912852] Possible unsafe locking scenario: [ 319.912852] [ 319.918881] CPU0 [ 319.921436] ---- [ 319.924076] lock(fs_reclaim); [ 319.927329] [ 319.930056] lock(fs_reclaim); [ 319.933480] [ 319.933480] *** DEADLOCK *** [ 319.933480] [ 319.939533] 2 locks held by loop0/18552: [ 319.943562] #0: (ptrval) (rcu_read_lock){....}, at: hctx_lock+0x7a/0x1d0 [ 319.951184] #1: (ptrval) (rcu_read_lock){....}, at: blk_account_io_completion+0xea/0x490 [ 319.960178] [ 319.960178] stack backtrace: [ 319.964655] CPU: 0 PID: 18552 Comm: loop0 Not tainted 4.17.0-rc2+ #18 [ 319.971207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 319.980534] Call Trace: [ 319.983091] [ 319.985221] dump_stack+0x1b9/0x294 [ 319.988824] ? dump_stack_print_info.cold.2+0x52/0x52 [ 319.993997] ? print_lock+0xd1/0xd6 [ 319.997607] ? vprintk_func+0x81/0xe7 [ 320.001381] print_usage_bug.cold.59+0x320/0x41a [ 320.006112] ? save_stack_trace+0x1a/0x20 [ 320.010236] mark_lock+0x1034/0x19e0 [ 320.013925] ? check_usage_backwards+0x3a0/0x3a0 [ 320.018659] ? print_usage_bug+0xc0/0xc0 [ 320.022694] ? save_trace+0xe0/0x290 [ 320.026383] ? print_usage_bug+0xc0/0xc0 [ 320.030417] ? mark_lock+0xafe/0x19e0 [ 320.034199] ? check_usage_backwards+0x3a0/0x3a0 [ 320.038943] ? print_usage_bug+0xc0/0xc0 [ 320.042981] ? scsi_mq_uninit_cmd+0x30/0x30 [ 320.047286] __lock_acquire+0x1595/0x5140 [ 320.051411] ? __lock_acquire+0x7f5/0x5140 [ 320.055620] ? find_held_lock+0x36/0x1c0 [ 320.059658] ? debug_check_no_locks_freed+0x310/0x310 [ 320.064829] ? debug_check_no_locks_freed+0x310/0x310 [ 320.069994] ? debug_check_no_locks_freed+0x310/0x310 [ 320.075163] ? lock_downgrade+0x8e0/0x8e0 [ 320.079285] ? sha_transform+0x26/0x4449 [ 320.083322] ? kasan_check_read+0x11/0x20 [ 320.087447] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.091829] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 320.096391] ? memset+0x31/0x40 [ 320.099660] ? memzero_explicit+0xe/0x10 [ 320.103699] ? extract_buf+0x3a3/0x4c0 [ 320.107563] ? graph_lock+0x170/0x170 [ 320.111343] ? crng_fast_load+0x3b0/0x3b0 [ 320.115465] ? graph_lock+0x170/0x170 [ 320.119241] ? account.constprop.30+0x34e/0x700 [ 320.123894] lock_acquire+0x1dc/0x520 [ 320.127675] ? bad_range+0x160/0x160 [ 320.131363] ? lock_release+0xa10/0xa10 [ 320.135311] ? lock_downgrade+0x8e0/0x8e0 [ 320.139433] ? lock_release+0xa10/0xa10 [ 320.143380] ? lock_downgrade+0x8e0/0x8e0 [ 320.147505] fs_reclaim_acquire.part.82+0x24/0x30 [ 320.152321] ? bad_range+0x160/0x160 [ 320.156026] fs_reclaim_acquire+0x14/0x20 [ 320.160149] __kmalloc+0x45/0x760 [ 320.163584] ? trace_hardirqs_off+0xd/0x10 [ 320.167801] ? _raw_write_unlock_irqrestore+0x63/0xc0 [ 320.172968] ? crng_reseed+0x427/0x920 [ 320.176831] crng_reseed+0x427/0x920 [ 320.180520] ? _extract_entropy.constprop.32+0x150/0x150 [ 320.185948] ? __lock_is_held+0xb5/0x140 [ 320.189986] credit_entropy_bits+0x98d/0xa30 [ 320.194374] ? add_interrupt_randomness+0x494/0x860 [ 320.199380] ? crng_reseed+0x920/0x920 [ 320.203242] ? lock_downgrade+0x8e0/0x8e0 [ 320.207367] ? __mix_pool_bytes+0xde/0x400 [ 320.211578] ? kasan_check_read+0x11/0x20 [ 320.215701] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.220084] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 320.224657] ? __handle_irq_event_percpu+0x34d/0xad0 [ 320.229740] add_interrupt_randomness+0x494/0x860 [ 320.234559] ? extract_entropy.constprop.29+0x490/0x490 [ 320.239900] ? lock_downgrade+0x8e0/0x8e0 [ 320.244028] ? handle_edge_irq+0x30/0x870 [ 320.248151] handle_irq_event_percpu+0xf9/0x1c0 [ 320.252797] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 320.257353] ? __handle_irq_event_percpu+0xad0/0xad0 [ 320.262434] ? rcu_irq_exit+0xd8/0x110 [ 320.266300] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 320.271816] handle_irq_event+0xa7/0x135 [ 320.275850] handle_edge_irq+0x20f/0x870 [ 320.279887] handle_irq+0x18c/0x2e7 [ 320.283491] do_IRQ+0x78/0x190 [ 320.286657] common_interrupt+0xf/0xf [ 320.290428] [ 320.292644] RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50 [ 320.297979] RSP: 0018:ffff8801aacdf460 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffda [ 320.305663] RAX: ffffffff833cdaca RBX: ffff8801d284d200 RCX: ffffffff833cdb0c [ 320.312917] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 320.320162] RBP: ffff8801aacdf4a0 R08: ffff8801d76b2580 R09: 0000000000000001 [ 320.327406] R10: ffff8801d76b2de0 R11: ffff8801d76b2580 R12: 0000000000000001 [ 320.334650] R13: 0000000000001000 R14: 0000000000000000 R15: ffff8801d284d200 [ 320.341903] ? blk_account_io_completion+0xea/0x490 [ 320.346893] ? blk_account_io_completion+0x12c/0x490 [ 320.351971] ? blk_account_io_completion+0x36e/0x490 [ 320.357050] blk_update_request+0x14c/0xcb0 [ 320.361349] ? blk_account_io_completion+0x490/0x490 [ 320.366427] ? blk_stat_add+0x10b/0x620 [ 320.370377] ? blk_stat_alloc_callback+0x280/0x280 [ 320.375280] blk_mq_end_request+0x5a/0x1f0 [ 320.379488] ? fsnotify+0x415/0xfc0 [ 320.383092] lo_complete_rq+0x1b8/0x270 [ 320.387048] __blk_mq_complete_request+0x4c8/0x9f0 [ 320.391954] ? blk_mq_free_request+0xc10/0xc10 [ 320.396515] ? kasan_check_read+0x11/0x20 [ 320.400640] ? rcu_is_watching+0x85/0x140 [ 320.404770] ? fsnotify+0xfc0/0xfc0 [ 320.408383] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 320.413549] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 320.419060] blk_mq_complete_request+0x2a5/0x370 [ 320.423791] ? hctx_unlock+0x150/0x150 [ 320.427656] ? check_same_owner+0x320/0x320 [ 320.431953] loop_queue_work+0x31e/0x3a08 [ 320.436075] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.440458] ? lo_rw_aio+0x2090/0x2090 [ 320.444323] ? preempt_notifier_register+0x1e0/0x1e0 [ 320.449419] ? __schedule+0x809/0x1e30 [ 320.453284] ? __sched_text_start+0x8/0x8 [ 320.457410] ? kasan_check_read+0x11/0x20 [ 320.461550] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.465935] ? graph_lock+0x170/0x170 [ 320.469719] ? compat_start_thread+0x80/0x80 [ 320.474111] ? _raw_spin_unlock_irq+0x27/0x70 [ 320.478581] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 320.483571] ? trace_hardirqs_on+0xd/0x10 [ 320.487697] ? _raw_spin_unlock_irq+0x27/0x70 [ 320.492169] ? finish_task_switch+0x1ca/0x810 [ 320.496641] ? find_held_lock+0x36/0x1c0 [ 320.500681] ? kasan_check_read+0x11/0x20 [ 320.504803] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.509186] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 320.513743] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 320.518736] kthread_worker_fn+0x357/0xa30 [ 320.522944] ? find_held_lock+0x36/0x1c0 [ 320.526979] ? kthread_associate_blkcg+0x870/0x870 [ 320.531886] ? schedule+0xef/0x430 [ 320.535401] ? __schedule+0x1e30/0x1e30 [ 320.539357] ? kasan_check_read+0x11/0x20 [ 320.543486] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.547868] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 320.552425] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 320.557502] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 320.562492] loop_kthread_worker_fn+0x51/0x60 [ 320.566964] kthread+0x345/0x410 [ 320.570304] ? loop_get_status64+0x140/0x140 [ 320.574688] ? kthread_bind+0x40/0x40 [ 320.578462] ret_from_fork+0x3a/0x50 [ 320.582159] BUG: sleeping function called from invalid context at mm/slab.h:421 [ 320.589580] in_atomic(): 1, irqs_disabled(): 1, pid: 18552, name: loop0 [ 320.596306] INFO: lockdep is turned off. [ 320.600337] irq event stamp: 1768 [ 320.603771] hardirqs last enabled at (1767): [] ktime_get+0x33e/0x430 [ 320.611975] hardirqs last disabled at (1768): [] interrupt_entry+0xb5/0xf0 [ 320.620527] softirqs last enabled at (1500): [] __do_softirq+0x778/0xaf5 [ 320.628991] softirqs last disabled at (1479): [] irq_exit+0x1d1/0x200 [ 320.637124] CPU: 0 PID: 18552 Comm: loop0 Not tainted 4.17.0-rc2+ #18 [ 320.643675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 320.653001] Call Trace: [ 320.655569] [ 320.657704] dump_stack+0x1b9/0x294 [ 320.661310] ? dump_stack_print_info.cold.2+0x52/0x52 [ 320.666473] ? fs_reclaim_acquire+0x20/0x20 [ 320.670772] ? irq_exit+0x1d1/0x200 [ 320.674380] ? irq_exit+0x1d1/0x200 [ 320.677985] ___might_sleep.cold.87+0x11f/0x13a [ 320.682632] ? check_same_owner+0x320/0x320 [ 320.686929] ? lock_release+0xa10/0xa10 [ 320.690879] __might_sleep+0x95/0x190 [ 320.694661] __kmalloc+0x2b9/0x760 [ 320.698176] ? trace_hardirqs_off+0xd/0x10 [ 320.702387] ? _raw_write_unlock_irqrestore+0x63/0xc0 [ 320.707555] ? crng_reseed+0x427/0x920 [ 320.711418] crng_reseed+0x427/0x920 [ 320.715108] ? _extract_entropy.constprop.32+0x150/0x150 [ 320.720538] ? __lock_is_held+0xb5/0x140 [ 320.724599] credit_entropy_bits+0x98d/0xa30 [ 320.728985] ? add_interrupt_randomness+0x494/0x860 [ 320.733977] ? crng_reseed+0x920/0x920 [ 320.737842] ? lock_downgrade+0x8e0/0x8e0 [ 320.741964] ? __mix_pool_bytes+0xde/0x400 [ 320.746181] ? kasan_check_read+0x11/0x20 [ 320.750397] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.754782] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 320.759340] ? __handle_irq_event_percpu+0x34d/0xad0 [ 320.764427] add_interrupt_randomness+0x494/0x860 [ 320.769247] ? extract_entropy.constprop.29+0x490/0x490 [ 320.774590] ? lock_downgrade+0x8e0/0x8e0 [ 320.778715] ? handle_edge_irq+0x30/0x870 [ 320.782846] handle_irq_event_percpu+0xf9/0x1c0 [ 320.787498] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 320.792056] ? __handle_irq_event_percpu+0xad0/0xad0 [ 320.797136] ? rcu_irq_exit+0xd8/0x110 [ 320.801004] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 320.806530] handle_irq_event+0xa7/0x135 [ 320.810568] handle_edge_irq+0x20f/0x870 [ 320.814609] handle_irq+0x18c/0x2e7 [ 320.818218] do_IRQ+0x78/0x190 [ 320.821386] common_interrupt+0xf/0xf [ 320.825158] [ 320.827375] RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50 [ 320.832712] RSP: 0018:ffff8801aacdf460 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffda [ 320.840393] RAX: ffffffff833cdaca RBX: ffff8801d284d200 RCX: ffffffff833cdb0c [ 320.847637] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 320.854881] RBP: ffff8801aacdf4a0 R08: ffff8801d76b2580 R09: 0000000000000001 [ 320.862124] R10: ffff8801d76b2de0 R11: ffff8801d76b2580 R12: 0000000000000001 [ 320.869455] R13: 0000000000001000 R14: 0000000000000000 R15: ffff8801d284d200 [ 320.876710] ? blk_account_io_completion+0xea/0x490 [ 320.881705] ? blk_account_io_completion+0x12c/0x490 [ 320.886786] ? blk_account_io_completion+0x36e/0x490 [ 320.891864] blk_update_request+0x14c/0xcb0 [ 320.896162] ? blk_account_io_completion+0x490/0x490 [ 320.901242] ? blk_stat_add+0x10b/0x620 [ 320.905196] ? blk_stat_alloc_callback+0x280/0x280 [ 320.910102] blk_mq_end_request+0x5a/0x1f0 [ 320.914314] ? fsnotify+0x415/0xfc0 [ 320.917919] lo_complete_rq+0x1b8/0x270 [ 320.921870] __blk_mq_complete_request+0x4c8/0x9f0 [ 320.926775] ? blk_mq_free_request+0xc10/0xc10 [ 320.931333] ? kasan_check_read+0x11/0x20 [ 320.935458] ? rcu_is_watching+0x85/0x140 [ 320.939583] ? fsnotify+0xfc0/0xfc0 [ 320.943185] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 320.948352] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 320.953873] blk_mq_complete_request+0x2a5/0x370 [ 320.958603] ? hctx_unlock+0x150/0x150 [ 320.962474] ? check_same_owner+0x320/0x320 [ 320.966774] loop_queue_work+0x31e/0x3a08 [ 320.970898] ? do_raw_spin_unlock+0x9e/0x2e0 [ 320.975286] ? lo_rw_aio+0x2090/0x2090 [ 320.979150] ? preempt_notifier_register+0x1e0/0x1e0 [ 320.984233] ? __schedule+0x809/0x1e30 [ 320.988099] ? __sched_text_start+0x8/0x8 [ 320.992222] ? kasan_check_read+0x11/0x20 [ 320.996346] ? do_raw_spin_unlock+0x9e/0x2e0 [ 321.000731] ? graph_lock+0x170/0x170 [ 321.004698] ? compat_start_thread+0x80/0x80 [ 321.009083] ? _raw_spin_unlock_irq+0x27/0x70 [ 321.013560] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 321.018551] ? trace_hardirqs_on+0xd/0x10 [ 321.022679] ? _raw_spin_unlock_irq+0x27/0x70 [ 321.027153] ? finish_task_switch+0x1ca/0x810 [ 321.031630] ? find_held_lock+0x36/0x1c0 [ 321.035676] ? kasan_check_read+0x11/0x20 [ 321.039799] ? do_raw_spin_unlock+0x9e/0x2e0 [ 321.044183] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 321.048747] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 321.053743] kthread_worker_fn+0x357/0xa30 [ 321.057953] ? find_held_lock+0x36/0x1c0 [ 321.061992] ? kthread_associate_blkcg+0x870/0x870 [ 321.066906] ? schedule+0xef/0x430 [ 321.070423] ? __schedule+0x1e30/0x1e30 [ 321.074548] ? kasan_check_read+0x11/0x20 [ 321.078676] ? do_raw_spin_unlock+0x9e/0x2e0 [ 321.083061] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 321.087620] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 321.092697] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 321.097689] loop_kthread_worker_fn+0x51/0x60 [ 321.102160] kthread+0x345/0x410 [ 321.105503] ? loop_get_status64+0x140/0x140 [ 321.109886] ? kthread_bind+0x40/0x40 [ 321.113663] ret_from_fork+0x3a/0x50 [ 321.117382] random: crng init done [ 321.135125] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 321.147543] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.603544] EXT4-fs: 334 callbacks suppressed [ 324.603552] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.621915] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.636212] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.648122] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.670616] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.681904] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.701344] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.718453] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.735482] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 324.752735] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 327.550277] print_req_error: I/O error, dev loop0, sector 264184 [ 329.604407] EXT4-fs: 463 callbacks suppressed [ 329.604414] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.621593] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.633783] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.650749] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.671481] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.689815] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.700380] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.713882] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.729611] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1, [ 329.748435] EXT4-fs (sda1): re-mounted. Opts: jqfmt=vfsv1,