bisecting fixing commit since 7472c4028e2357202949f99ad94c5a5a34f95666 building syzkaller on 2e9971bbbfb4df6ba0118353163a7703f3dbd6ec testing commit 7472c4028e2357202949f99ad94c5a5a34f95666 with gcc (GCC) 8.1.0 kernel signature: 2df5ea233d14722176a49419d891650af0827fa06d3316605c1bf8fac36d56a4 run #0: crashed: possible deadlock in pipe_lock 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 testing current HEAD dda0e2920330128e0dbdeb11c8f25031aa40b11c testing commit dda0e2920330128e0dbdeb11c8f25031aa40b11c with gcc (GCC) 8.1.0 kernel signature: db5ebf73804d6a1c44a7c111fdd15fb952a96957b20673ceaf2c72a7fc88d297 all runs: OK # git bisect start dda0e2920330128e0dbdeb11c8f25031aa40b11c 7472c4028e2357202949f99ad94c5a5a34f95666 Bisecting: 202 revisions left to test after this (roughly 8 steps) [5043d35d37381cff1d37ae32e5fc3be070ee4e50] net: rmnet: fix packet forwarding in rmnet bridge mode testing commit 5043d35d37381cff1d37ae32e5fc3be070ee4e50 with gcc (GCC) 8.1.0 kernel signature: 721c6d3d6cb030fc273ab4d1b17b8a4f2fe0e7948af0c97ba69a710ebeb09b84 failed: failed to create VM pool: failed to create GCE image: failed to create image: googleapi: Error 503: Internal error. Please try again or contact Google Support. (Code: '-4264226053039574331'), backendError # git bisect skip 5043d35d37381cff1d37ae32e5fc3be070ee4e50 Bisecting: 201 revisions left to test after this (roughly 8 steps) [04a244c8e61f043d22207a0451c6175d86b3b30d] sfc: fix timestamp reconstruction at 16-bit rollover points testing commit 04a244c8e61f043d22207a0451c6175d86b3b30d with gcc (GCC) 8.1.0 kernel signature: 3673eac174ebabd513888e28b4212fac0cf139f19b29151d714b768c809037d9 failed: failed to create VM pool: failed to create GCE image: failed to create image: googleapi: Error 503: Internal error. Please try again or contact Google Support. (Code: '6792037315908683143'), backendError # git bisect skip 04a244c8e61f043d22207a0451c6175d86b3b30d Bisecting: 201 revisions left to test after this (roughly 8 steps) [b600c5a14eb9676bd62e034d3c699f0405fe8ad9] driver core: Remove the link if there is no driver with AUTO flag testing commit b600c5a14eb9676bd62e034d3c699f0405fe8ad9 with gcc (GCC) 8.1.0 kernel signature: ae7900570c7f32b09037174212b23a7302c98759e9a31dab80fe25964e263d5d failed: failed to create VM pool: failed to create GCE image: failed to create image: googleapi: Error 503: Internal error. Please try again or contact Google Support. (Code: '-8927826255150662516'), backendError # git bisect skip b600c5a14eb9676bd62e034d3c699f0405fe8ad9 Bisecting: 201 revisions left to test after this (roughly 8 steps) [d091259b8d7abca0c2ab78b394315494393f6dfc] mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for eMMC sleep command testing commit d091259b8d7abca0c2ab78b394315494393f6dfc with gcc (GCC) 8.1.0 kernel signature: 5a7691cbaa7076bbbea8cba923cd39eec5c2ef6b87156aeafc386559671cd6eb failed: failed to create VM pool: failed to create GCE image: failed to create image: googleapi: Error 503: Internal error. Please try again or contact Google Support. (Code: '3301941973632161029'), backendError # git bisect skip d091259b8d7abca0c2ab78b394315494393f6dfc Bisecting: 201 revisions left to test after this (roughly 8 steps) [dfb827019bcc6d549cf9265185eacf67c391b42d] wimax: i2400: Fix memory leak in i2400m_op_rfkill_sw_toggle testing commit dfb827019bcc6d549cf9265185eacf67c391b42d with gcc (GCC) 8.1.0 kernel signature: e58370fb058ac8d23f3c7bb6727550182239a9b1c1a0dde51eb63c92e4d6e6b0 failed: failed to create VM pool: failed to create GCE image: failed to create image: googleapi: Error 503: Internal error. Please try again or contact Google Support. (Code: '5148711302817674123'), backendError # git bisect skip dfb827019bcc6d549cf9265185eacf67c391b42d Bisecting: 201 revisions left to test after this (roughly 8 steps) [21213fb67401a6ad5ea3d36d8b404ce4c40a316a] drm/bridge: dw-hdmi: fix AVI frame colorimetry testing commit 21213fb67401a6ad5ea3d36d8b404ce4c40a316a with gcc (GCC) 8.1.0 kernel signature: 94de90f0605f19b1096aba896473f978264c6989510340ee30f9f24e200f7cc9 failed: failed to create VM pool: failed to init gce: error getting instance info: Get https://compute.googleapis.com/compute/beta/projects/syzkaller/zones/us-central1-c/instances/ci2?alt=json&prettyPrint=false: compute: Received 504 `"Request timeout."` # git bisect skip 21213fb67401a6ad5ea3d36d8b404ce4c40a316a Bisecting: 201 revisions left to test after this (roughly 8 steps) [799781649bb5830cd28fe88e7b45f552bc3bb2e4] net: rmnet: use upper/lower device infrastructure testing commit 799781649bb5830cd28fe88e7b45f552bc3bb2e4 with gcc (GCC) 8.1.0 kernel signature: d223df952997059312dc9e5650c5cb9044b9d268c2c713cdc351ed1dec15608c run #0: crashed: possible deadlock in ovl_write_iter 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 good 799781649bb5830cd28fe88e7b45f552bc3bb2e4 Bisecting: 102 revisions left to test after this (roughly 7 steps) [6fb0e4385928900ccb8697748555b3f54bba5193] net/packet: tpacket_rcv: avoid a producer race condition testing commit 6fb0e4385928900ccb8697748555b3f54bba5193 with gcc (GCC) 8.1.0 kernel signature: 7b336a59d35de90172b797c67a276372b696a0e9ca4e860eb48bd7e405ec94db all runs: OK # git bisect bad 6fb0e4385928900ccb8697748555b3f54bba5193 Bisecting: 50 revisions left to test after this (roughly 6 steps) [8c5bd5520334f354662ce59925a57e958ff75520] ALSA: pcm: oss: Avoid plugin buffer overflow testing commit 8c5bd5520334f354662ce59925a57e958ff75520 with gcc (GCC) 8.1.0 kernel signature: 5117a59b5ccd9c87b3aa9b5f4bc8aecd9f5887194680544b6848a6870154f4e4 all runs: basic kernel testing failed: WARNING in snd_pcm_plug_alloc # git bisect skip 8c5bd5520334f354662ce59925a57e958ff75520 Bisecting: 50 revisions left to test after this (roughly 6 steps) [bc97a345d97556dea71f0748acb5d9ea413c7cc7] net: qrtr: fix len of skb_put_padto in qrtr_node_enqueue testing commit bc97a345d97556dea71f0748acb5d9ea413c7cc7 with gcc (GCC) 8.1.0 kernel signature: ae7aae4bd30dcbf20e4fe1c26f003967456a1e41f8811e349b1be6fa15af1140 run #0: crashed: possible deadlock in ovl_write_iter 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 good bc97a345d97556dea71f0748acb5d9ea413c7cc7 Bisecting: 43 revisions left to test after this (roughly 6 steps) [0cdbb2f099094388fc96fc654c0e8e4b66d38a33] mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2 testing commit 0cdbb2f099094388fc96fc654c0e8e4b66d38a33 with gcc (GCC) 8.1.0 kernel signature: bac44df5a9158a67f2129cbb9a228a2c477bac7ccab27b28a369fcf300957d0d all runs: OK # git bisect bad 0cdbb2f099094388fc96fc654c0e8e4b66d38a33 Bisecting: 20 revisions left to test after this (roughly 5 steps) [345acf45a0cef1effd58d42ed8e767a6219ae4b6] drm/amd/display: fix dcc swath size calculations on dcn1 testing commit 345acf45a0cef1effd58d42ed8e767a6219ae4b6 with gcc (GCC) 8.1.0 kernel signature: 3aff240e767205097fe0ab28060594e2bedb3415f592575f8f985838bbb05a5c run #0: crashed: possible deadlock in ovl_write_iter 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 good 345acf45a0cef1effd58d42ed8e767a6219ae4b6 Bisecting: 10 revisions left to test after this (roughly 3 steps) [906b5420ddeb1185df57f26c6e5854ea75fd6edf] usb: xhci: apply XHCI_SUSPEND_DELAY to AMD XHCI controller 1022:145c testing commit 906b5420ddeb1185df57f26c6e5854ea75fd6edf with gcc (GCC) 8.1.0 kernel signature: b055b502f622da9b071a73849370203f81e0403a9618877ab292bbefe4aecf51 all runs: OK # git bisect bad 906b5420ddeb1185df57f26c6e5854ea75fd6edf Bisecting: 4 revisions left to test after this (roughly 2 steps) [eae6b4a4d7f82c5a01d6caeef96abe81888b53d3] USB: Disable LPM on WD19's Realtek Hub testing commit eae6b4a4d7f82c5a01d6caeef96abe81888b53d3 with gcc (GCC) 8.1.0 kernel signature: 1b6cb9aa01c088208044541bad942a3a3fe89e2f2ce0367c9b58b647aeb15f9d all runs: OK # git bisect bad eae6b4a4d7f82c5a01d6caeef96abe81888b53d3 Bisecting: 1 revision left to test after this (roughly 1 step) [3cbfc33d43d5667c7948e60495dafaa89f1e4c99] block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group() testing commit 3cbfc33d43d5667c7948e60495dafaa89f1e4c99 with gcc (GCC) 8.1.0 kernel signature: 86cd4c9c429ddd7ac397ad5ca0a7b6bd9f5eb006bbf64552c38286f4c343c984 run #0: crashed: possible deadlock in ovl_write_iter run #1: crashed: possible deadlock in pipe_lock 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 good 3cbfc33d43d5667c7948e60495dafaa89f1e4c99 Bisecting: 0 revisions left to test after this (roughly 0 steps) [4da2ef0588670bfaf82fa41d0b22f56fa2306a95] parse-maintainers: Mark as executable testing commit 4da2ef0588670bfaf82fa41d0b22f56fa2306a95 with gcc (GCC) 8.1.0 kernel signature: 05fefcf6853e9dbe03909cea66ab52e597379604ac1ebd603ef481d71db1813f run #0: crashed: possible deadlock in pipe_lock 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 good 4da2ef0588670bfaf82fa41d0b22f56fa2306a95 eae6b4a4d7f82c5a01d6caeef96abe81888b53d3 is the first bad commit commit eae6b4a4d7f82c5a01d6caeef96abe81888b53d3 Author: Kai-Heng Feng Date: Wed Feb 5 19:26:33 2020 +0800 USB: Disable LPM on WD19's Realtek Hub commit b63e48fb50e1ca71db301ca9082befa6f16c55c4 upstream. Realtek Hub (0bda:0x0487) used in Dell Dock WD19 sometimes drops off the bus when bringing underlying ports from U3 to U0. Disabling LPM on the hub during setting link state is not enough, so let's disable LPM completely for this hub. Acked-by: Alan Stern Signed-off-by: Kai-Heng Feng Cc: stable Link: https://lore.kernel.org/r/20200205112633.25995-3-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) culprit signature: 1b6cb9aa01c088208044541bad942a3a3fe89e2f2ce0367c9b58b647aeb15f9d parent signature: 05fefcf6853e9dbe03909cea66ab52e597379604ac1ebd603ef481d71db1813f revisions tested: 18, total time: 4h36m33.258221149s (build: 2h41m17.527143565s, test: 1h53m41.049944114s) first good commit: eae6b4a4d7f82c5a01d6caeef96abe81888b53d3 USB: Disable LPM on WD19's Realtek Hub cc: ["gregkh@linuxfoundation.org" "kai.heng.feng@canonical.com" "stern@rowland.harvard.edu"]