bisecting cause commit starting from 00c3bc00f0cadbb48f2414370733892676511e79 building syzkaller on a7383bfac17332db9afdad436b6c06c48bfe4815 testing commit 00c3bc00f0cadbb48f2414370733892676511e79 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in cgroup_exit testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 all runs: OK # git bisect start 00c3bc00f0cadbb48f2414370733892676511e79 v5.1 Bisecting: 6023 revisions left to test after this (roughly 13 steps) [492c7bae4c8dd1acd7b346d87fe2ba6a255f2c72] Merge remote-tracking branch 'net-next/master' testing commit 492c7bae4c8dd1acd7b346d87fe2ba6a255f2c72 with gcc (GCC) 8.1.0 failed to run ["make" "bzImage" "-j" "64" "CC=/syzkaller/bisect_bin/gcc-8.1.0/bin/gcc"]: exit status 2 # git bisect skip 492c7bae4c8dd1acd7b346d87fe2ba6a255f2c72 Bisecting: 6023 revisions left to test after this (roughly 13 steps) [2a050b7a746e2c59a733a3641eb1c01cf2e573b4] dt-bindings: sound: add compatible for rk1808 testing commit 2a050b7a746e2c59a733a3641eb1c01cf2e573b4 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 2a050b7a746e2c59a733a3641eb1c01cf2e573b4 Bisecting: 6023 revisions left to test after this (roughly 13 steps) [6edf07478da50ffbe64110391dada12bc1711f29] mt76: add unlikely() for dma_mapping_error() check testing commit 6edf07478da50ffbe64110391dada12bc1711f29 with gcc (GCC) 8.1.0 failed to run ["make" "bzImage" "-j" "64" "CC=/syzkaller/bisect_bin/gcc-8.1.0/bin/gcc"]: exit status 2 # git bisect skip 6edf07478da50ffbe64110391dada12bc1711f29 Bisecting: 6023 revisions left to test after this (roughly 13 steps) [65c6f638d600181f66a6a5aa2e86a4162ca87a38] rtc: sun4v: switch to rtc_time64_to_tm/rtc_tm_to_time64 testing commit 65c6f638d600181f66a6a5aa2e86a4162ca87a38 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 65c6f638d600181f66a6a5aa2e86a4162ca87a38 Bisecting: 5969 revisions left to test after this (roughly 13 steps) [84dc8468cf56dbc108edcefdf0b1144d78279505] mm-memcontrol-make-cgroup-stats-and-events-query-api-explicitly-local-fix testing commit 84dc8468cf56dbc108edcefdf0b1144d78279505 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in cgroup_exit # git bisect bad 84dc8468cf56dbc108edcefdf0b1144d78279505 Bisecting: 5963 revisions left to test after this (roughly 13 steps) [f1cf11c296c599b81549aa2c5221d75138a58aa4] misc: fastrpc: increase max init file size to 64 MB testing commit f1cf11c296c599b81549aa2c5221d75138a58aa4 with gcc (GCC) 8.1.0 all runs: OK # git bisect good f1cf11c296c599b81549aa2c5221d75138a58aa4 Bisecting: 5948 revisions left to test after this (roughly 13 steps) [58908dc5d4123a073b396babb3396820f2d61843] Merge branch 'r8169-improve-eri-function-handling' testing commit 58908dc5d4123a073b396babb3396820f2d61843 with gcc (GCC) 8.1.0 failed to run ["make" "bzImage" "-j" "64" "CC=/syzkaller/bisect_bin/gcc-8.1.0/bin/gcc"]: exit status 2 # git bisect skip 58908dc5d4123a073b396babb3396820f2d61843 Bisecting: 5948 revisions left to test after this (roughly 13 steps) [270e21da4890afedddec48a626e1a07ff6595fc6] crypto: hifn_795x - Forbid 2-key 3DES in FIPS mode testing commit 270e21da4890afedddec48a626e1a07ff6595fc6 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 270e21da4890afedddec48a626e1a07ff6595fc6 Bisecting: 5948 revisions left to test after this (roughly 13 steps) [4b562de4e227dbc2267c367b0a1ec83051c364f6] spi: stm32-qspi: manage the get_irq error case testing commit 4b562de4e227dbc2267c367b0a1ec83051c364f6 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 4b562de4e227dbc2267c367b0a1ec83051c364f6 Bisecting: 5846 revisions left to test after this (roughly 13 steps) [dd19f6bf9245dd17fa9e7f89ceda56c930a130d4] drm/i915: Remove defunct intel_suspend_gt_powersave() testing commit dd19f6bf9245dd17fa9e7f89ceda56c930a130d4 with gcc (GCC) 8.1.0 all runs: OK # git bisect good dd19f6bf9245dd17fa9e7f89ceda56c930a130d4 Bisecting: 5508 revisions left to test after this (roughly 13 steps) [c826b3c6f2e77666380bacde13e8891e4a33b6f0] IB/mthca: use the new FOLL_LONGTERM flag to get_user_pages_fast() testing commit c826b3c6f2e77666380bacde13e8891e4a33b6f0 with gcc (GCC) 8.1.0 all runs: OK # git bisect good c826b3c6f2e77666380bacde13e8891e4a33b6f0 Bisecting: 5459 revisions left to test after this (roughly 13 steps) [d8c2040bf9873deb35422776ad06a27f0dc5c020] scsi: lpfc: Remove unused functions testing commit d8c2040bf9873deb35422776ad06a27f0dc5c020 with gcc (GCC) 8.1.0 all runs: OK # git bisect good d8c2040bf9873deb35422776ad06a27f0dc5c020 Bisecting: 5310 revisions left to test after this (roughly 13 steps) [2af6597ac3fab8a3796786bb73f8bd14a9f2d376] ARM: tegra: Don't apply CPU erratas in insecure mode testing commit 2af6597ac3fab8a3796786bb73f8bd14a9f2d376 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 2af6597ac3fab8a3796786bb73f8bd14a9f2d376 Bisecting: 5310 revisions left to test after this (roughly 13 steps) [9fc6eeb7cbe56d481528a65c5cfbc27fae2b2af4] staging: vchiq_arm: remove space after open '(' testing commit 9fc6eeb7cbe56d481528a65c5cfbc27fae2b2af4 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 9fc6eeb7cbe56d481528a65c5cfbc27fae2b2af4 Bisecting: 4982 revisions left to test after this (roughly 13 steps) [79d03fe16eff4cbb56785a5fd38876b77534f7a7] tpm: Fix the type of the return value in calc_tpm2_event_size() testing commit 79d03fe16eff4cbb56785a5fd38876b77534f7a7 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 79d03fe16eff4cbb56785a5fd38876b77534f7a7 Bisecting: 4966 revisions left to test after this (roughly 13 steps) [abfcba1c35b70957e3aaba931872f72322961ba1] Merge tag 'tegra-for-5.2-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/soc testing commit abfcba1c35b70957e3aaba931872f72322961ba1 with gcc (GCC) 8.1.0 all runs: OK # git bisect good abfcba1c35b70957e3aaba931872f72322961ba1 Bisecting: 4966 revisions left to test after this (roughly 13 steps) [c5710cd20735037ba9be0e95530f0d3795ce07e6] powerpc/mm: cleanup HPAGE_SHIFT setup testing commit c5710cd20735037ba9be0e95530f0d3795ce07e6 with gcc (GCC) 8.1.0 all runs: OK # git bisect good c5710cd20735037ba9be0e95530f0d3795ce07e6 Bisecting: 4966 revisions left to test after this (roughly 13 steps) [fd321c6c2380a27ee8bf0ead91029a88f23e5dc9] mlxsw: spectrum: split base on local_ports_in_{1x, 2x} resources testing commit fd321c6c2380a27ee8bf0ead91029a88f23e5dc9 with gcc (GCC) 8.1.0 failed to run ["make" "bzImage" "-j" "64" "CC=/syzkaller/bisect_bin/gcc-8.1.0/bin/gcc"]: exit status 2 # git bisect skip fd321c6c2380a27ee8bf0ead91029a88f23e5dc9 Bisecting: 4966 revisions left to test after this (roughly 13 steps) [dd50cf7cbc7bdd86483b797ac3d27b37d5aeeaa4] powerpc/perf: Rearrange setting of ldbar for thread-imc testing commit dd50cf7cbc7bdd86483b797ac3d27b37d5aeeaa4 with gcc (GCC) 8.1.0 all runs: OK # git bisect good dd50cf7cbc7bdd86483b797ac3d27b37d5aeeaa4 Bisecting: 4966 revisions left to test after this (roughly 13 steps) [aa3b3690504d8dde55539b406a3fbbdc3fe228d2] docs/zh_CN: move process related docs into process dir testing commit aa3b3690504d8dde55539b406a3fbbdc3fe228d2 with gcc (GCC) 8.1.0 all runs: OK # git bisect good aa3b3690504d8dde55539b406a3fbbdc3fe228d2 Bisecting: 4966 revisions left to test after this (roughly 13 steps) [390a0c62c23cb026cd4664a66f6f45fed3a215f6] locking/rwsem: Remove rwsem-spinlock.c & use rwsem-xadd.c for all archs testing commit 390a0c62c23cb026cd4664a66f6f45fed3a215f6 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 390a0c62c23cb026cd4664a66f6f45fed3a215f6 Bisecting: 4963 revisions left to test after this (roughly 13 steps) [19de644b7250913181d6606b1bb3467852e1406a] lib/plist: rename DEBUG_PI_LIST to DEBUG_PLIST testing commit 19de644b7250913181d6606b1bb3467852e1406a with gcc (GCC) 8.1.0 all runs: OK # git bisect good 19de644b7250913181d6606b1bb3467852e1406a Bisecting: 4767 revisions left to test after this (roughly 12 steps) [1f25cb289296338075ec0ed103d63cfb9418abb1] watchdog: imgpdc_wdt: Convert to use device managed functions and other improvements testing commit 1f25cb289296338075ec0ed103d63cfb9418abb1 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 1f25cb289296338075ec0ed103d63cfb9418abb1 Bisecting: 4734 revisions left to test after this (roughly 12 steps) [7a516e49d9753119e099fd924574a58e69c9ae84] arm64: dts: renesas: use extended audio dmac register testing commit 7a516e49d9753119e099fd924574a58e69c9ae84 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 7a516e49d9753119e099fd924574a58e69c9ae84 Bisecting: 4734 revisions left to test after this (roughly 12 steps) [4cdb562147467b3530e86c7c51c3fbffe3067c09] hwmon: lochnagar: Add Lochnagar 2 hardware monitoring driver testing commit 4cdb562147467b3530e86c7c51c3fbffe3067c09 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 4cdb562147467b3530e86c7c51c3fbffe3067c09 Bisecting: 4734 revisions left to test after this (roughly 12 steps) [5023b14cf4df4d22e1a80738167f3438c9e62e5f] mac80211: support profile split between elements testing commit 5023b14cf4df4d22e1a80738167f3438c9e62e5f with gcc (GCC) 8.1.0 all runs: OK # git bisect good 5023b14cf4df4d22e1a80738167f3438c9e62e5f Bisecting: 4734 revisions left to test after this (roughly 12 steps) [542802613b9f731302d161ffcffad95e73733a9b] pinctrl: sh-pfc: r8a7779: Add HSCIF0/1 pins testing commit 542802613b9f731302d161ffcffad95e73733a9b with gcc (GCC) 8.1.0 all runs: OK # git bisect good 542802613b9f731302d161ffcffad95e73733a9b Bisecting: 4730 revisions left to test after this (roughly 12 steps) [e1fd0398d1e7d64e7db06a51a20b2e884a94c8dd] Merge branch 'for-5.1/fake-signal' into for-next testing commit e1fd0398d1e7d64e7db06a51a20b2e884a94c8dd with gcc (GCC) 8.1.0 all runs: OK # git bisect good e1fd0398d1e7d64e7db06a51a20b2e884a94c8dd Bisecting: 4722 revisions left to test after this (roughly 12 steps) [bf8981a2aa082d9d64771b47c8a1c9c388d8cd40] netfilter: nf_nat: merge ip/ip6 masquerade headers testing commit bf8981a2aa082d9d64771b47c8a1c9c388d8cd40 with gcc (GCC) 8.1.0 all runs: OK # git bisect good bf8981a2aa082d9d64771b47c8a1c9c388d8cd40 Bisecting: 4722 revisions left to test after this (roughly 12 steps) [6eb4f08293e971cb1b7b867c7fe994c244b91460] x86/apic: Unify duplicated local apic timer clockevent initialization testing commit 6eb4f08293e971cb1b7b867c7fe994c244b91460 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 6eb4f08293e971cb1b7b867c7fe994c244b91460 Bisecting: 4721 revisions left to test after this (roughly 12 steps) [eb40baefb64063b585740ecf0b1be6c859166ad4] drm/sun4i: backend: Simplify the get_id logic testing commit eb40baefb64063b585740ecf0b1be6c859166ad4 with gcc (GCC) 8.1.0 all runs: OK # git bisect good eb40baefb64063b585740ecf0b1be6c859166ad4 Bisecting: 4622 revisions left to test after this (roughly 12 steps) [8c71c7b943d4c12994e4e3eb2d50dfb3681e0c8d] hwmon: (lm63) Fix build warning testing commit 8c71c7b943d4c12994e4e3eb2d50dfb3681e0c8d with gcc (GCC) 8.1.0 all runs: OK # git bisect good 8c71c7b943d4c12994e4e3eb2d50dfb3681e0c8d Bisecting: 4622 revisions left to test after this (roughly 12 steps) [b78fc46079e444c5bdf3c2b843cccc2a195d1f75] ipc-do-cyclic-id-allocation-for-the-ipc-object-fix testing commit b78fc46079e444c5bdf3c2b843cccc2a195d1f75 with gcc (GCC) 8.1.0 all runs: OK # git bisect good b78fc46079e444c5bdf3c2b843cccc2a195d1f75 Bisecting: 4530 revisions left to test after this (roughly 12 steps) [f57c4bbf34439531adccd7d3a4ecc14f409c1399] 6lowpan: Off by one handling ->nexthdr testing commit f57c4bbf34439531adccd7d3a4ecc14f409c1399 with gcc (GCC) 8.1.0 failed to run ["make" "bzImage" "-j" "64" "CC=/syzkaller/bisect_bin/gcc-8.1.0/bin/gcc"]: exit status 2 # git bisect skip f57c4bbf34439531adccd7d3a4ecc14f409c1399 Bisecting: 4530 revisions left to test after this (roughly 12 steps) [f68a5b44647bce6c34b10d5560c5b2c0aff31afc] selftests/bpf: Test indirect var_off stack access in raw mode testing commit f68a5b44647bce6c34b10d5560c5b2c0aff31afc with gcc (GCC) 8.1.0 failed to run ["make" "bzImage" "-j" "64" "CC=/syzkaller/bisect_bin/gcc-8.1.0/bin/gcc"]: exit status 2 # git bisect skip f68a5b44647bce6c34b10d5560c5b2c0aff31afc Bisecting: 4530 revisions left to test after this (roughly 12 steps) [c8f005684c98f4d9942baec13ad98054dbf312a0] drm: Expose "FB_DAMAGE_CLIPS" property to atomic aware user-space only testing commit c8f005684c98f4d9942baec13ad98054dbf312a0 with gcc (GCC) 8.1.0 all runs: OK # git bisect good c8f005684c98f4d9942baec13ad98054dbf312a0 Bisecting: 5176 revisions left to test after this (roughly 12 steps) [e42940e8559c8bbffa8286cc78067c75eb42b374] Merge remote-tracking branch 'rdma/for-next' testing commit e42940e8559c8bbffa8286cc78067c75eb42b374 with gcc (GCC) 8.1.0 run #0: crashed: WARNING: ODEBUG bug in netdev_freemem run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad e42940e8559c8bbffa8286cc78067c75eb42b374 Bisecting: 2005 revisions left to test after this (roughly 11 steps) [c37465c51ad761aa17025768df580e601b2aef16] Merge remote-tracking branch 's390/features' testing commit c37465c51ad761aa17025768df580e601b2aef16 with gcc (GCC) 8.1.0 all runs: OK # git bisect good c37465c51ad761aa17025768df580e601b2aef16 Bisecting: 909 revisions left to test after this (roughly 10 steps) [50cfa8a41b93119668d250dccb15064fe7afa3f4] Merge remote-tracking branch 'hid/for-next' testing commit 50cfa8a41b93119668d250dccb15064fe7afa3f4 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 50cfa8a41b93119668d250dccb15064fe7afa3f4 Bisecting: 392 revisions left to test after this (roughly 9 steps) [07e235015a1f3fa3fa6b7d12cee53369e0394459] Merge remote-tracking branch 'v4l-dvb/master' testing commit 07e235015a1f3fa3fa6b7d12cee53369e0394459 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 07e235015a1f3fa3fa6b7d12cee53369e0394459 Bisecting: 196 revisions left to test after this (roughly 8 steps) [023315c3b5a1e1169a47e6640ca09eb0497d861a] Merge remote-tracking branch 'ieee1394/for-next' testing commit 023315c3b5a1e1169a47e6640ca09eb0497d861a with gcc (GCC) 8.1.0 all runs: OK # git bisect good 023315c3b5a1e1169a47e6640ca09eb0497d861a Bisecting: 97 revisions left to test after this (roughly 7 steps) [68e326dea1dba935f6a5299a24343a58b33eed10] RDMA: Handle SRQ allocations by IB/core testing commit 68e326dea1dba935f6a5299a24343a58b33eed10 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 68e326dea1dba935f6a5299a24343a58b33eed10 Bisecting: 48 revisions left to test after this (roughly 6 steps) [5d7ed2f27bbd482fd29e6b2e204b1a1ee8a0b268] RDMA/cma: Consider scope_id while binding to ipv6 ll address testing commit 5d7ed2f27bbd482fd29e6b2e204b1a1ee8a0b268 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 5d7ed2f27bbd482fd29e6b2e204b1a1ee8a0b268 Bisecting: 24 revisions left to test after this (roughly 5 steps) [4f33dd41b24c1e3494a6ea6c7839ea068343f809] RDMA/uverbs: Initialize uverbs_attr_bundle ucontext in ib_uverbs_get_context testing commit 4f33dd41b24c1e3494a6ea6c7839ea068343f809 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 4f33dd41b24c1e3494a6ea6c7839ea068343f809 Bisecting: 11 revisions left to test after this (roughly 4 steps) [48992c8f03fb7e56f82fac85c83069d0de087323] Merge remote-tracking branch 'swiotlb/linux-next' testing commit 48992c8f03fb7e56f82fac85c83069d0de087323 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 48992c8f03fb7e56f82fac85c83069d0de087323 Bisecting: 5 revisions left to test after this (roughly 3 steps) [8f9748602491295b305960cd2cd4976ad15cb04f] IB/cm: Reduce dependency on gid attribute ndev check testing commit 8f9748602491295b305960cd2cd4976ad15cb04f with gcc (GCC) 8.1.0 all runs: OK # git bisect good 8f9748602491295b305960cd2cd4976ad15cb04f Bisecting: 2 revisions left to test after this (roughly 2 steps) [dab2175800ef0b45d5e70a7337bd6cb311292ebe] RDMA/rxe: Use rdma_read_gid_attr_ndev_rcu to access netdev testing commit dab2175800ef0b45d5e70a7337bd6cb311292ebe with gcc (GCC) 8.1.0 all runs: OK # git bisect good dab2175800ef0b45d5e70a7337bd6cb311292ebe Bisecting: 1 revision left to test after this (roughly 1 step) [5102eca9039ba1df6d2e8756b0c030676021f56b] net/smc: Use rdma_read_gid_l2_fields to L2 fields testing commit 5102eca9039ba1df6d2e8756b0c030676021f56b with gcc (GCC) 8.1.0 all runs: OK # git bisect good 5102eca9039ba1df6d2e8756b0c030676021f56b Bisecting: 0 revisions left to test after this (roughly 0 steps) [943bd984b108b3bb778790c2da4ae8d186b547e6] RDMA/core: Allow detaching gid attribute netdevice for RoCE testing commit 943bd984b108b3bb778790c2da4ae8d186b547e6 with gcc (GCC) 8.1.0 all runs: OK # git bisect good 943bd984b108b3bb778790c2da4ae8d186b547e6 e42940e8559c8bbffa8286cc78067c75eb42b374 is the first bad commit revisions tested: 51, total time: 16h21m22.36646868s (build: 7h8m26.032228393s, test: 8h44m49.753959776s) first bad commit: e42940e8559c8bbffa8286cc78067c75eb42b374 Merge remote-tracking branch 'rdma/for-next' cc: ["sfr@canb.auug.org.au"] crash: WARNING: ODEBUG bug in netdev_freemem device hsr_slave_0 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves ------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 arch/x86/include/asm/paravirt.h:767 WARNING: CPU: 0 PID: 101 at lib/debugobjects.c:328 debug_print_object+0x16a/0x210 lib/debugobjects.c:325 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 101 Comm: kworker/u4:3 Not tainted 5.1.0+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x113/0x167 lib/dump_stack.c:113 panic+0x212/0x41d kernel/panic.c:214 __warn.cold.8+0x1b/0x36 kernel/panic.c:566 report_bug+0x1a4/0x200 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:debug_print_object+0x16a/0x210 lib/debugobjects.c:325 Code: 20 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 00 00 00 48 8b 14 dd e0 21 20 87 4c 89 fe 48 c7 c7 80 17 20 87 e8 19 2b 3d fe <0f> 0b 83 05 49 e2 d4 05 01 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffff8880a95e7840 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000004 RSI: 0000000000000008 RDI: ffffffff89cd6be0 RBP: ffff8880a95e7880 R08: ffffed1015d43ef9 R09: ffffed1015d43ef8 R10: ffffed1015d43ef8 R11: ffff8880aea1f7c7 R12: 0000000000000001 R13: ffffffff881a39c0 R14: ffffffff81580cc0 R15: ffffffff87201e00 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline] debug_check_no_obj_freed+0x264/0x472 lib/debugobjects.c:817 kfree+0xbd/0x230 mm/slab.c:3821 kvfree+0x2c/0x30 mm/util.c:459 netdev_freemem+0x47/0x60 net/core/dev.c:9092 netdev_release+0x6c/0x90 net/core/net-sysfs.c:1637 device_release+0x74/0x1d0 drivers/base/core.c:1064 kobject_cleanup lib/kobject.c:662 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:67 [inline] kobject_put.cold.9+0x22e/0x281 lib/kobject.c:708 netdev_run_todo+0x4c4/0x6b0 net/core/dev.c:8997 rtnl_unlock+0x9/0x10 net/core/rtnetlink.c:116 default_device_exit_batch+0x2ec/0x3d0 net/core/dev.c:9778 ops_exit_list.isra.5+0xd9/0x130 net/core/net_namespace.c:156 cleanup_net+0x363/0x850 net/core/net_namespace.c:552 process_one_work+0x835/0x16b0 kernel/workqueue.c:2269 worker_thread+0x85/0xb60 kernel/workqueue.c:2415 kthread+0x327/0x3f0 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 ======================================================