bisecting fixing commit since 775d01b65b5daa002a9ba60f2d2bb3b1a6ce12fb building syzkaller on cdac920beb540736200639a6254e6dc01422e705 testing commit 775d01b65b5daa002a9ba60f2d2bb3b1a6ce12fb with gcc (GCC) 8.1.0 kernel signature: 5540a95dcf7a7a26b79812390827d182453bdaa0d913eb66efe52f4345efb6da all runs: crashed: WARNING in reconnect_path testing current HEAD 98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796 testing commit 98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796 with gcc (GCC) 8.1.0 kernel signature: 68bed3779f1cde833ecb9929021798ca17ba0eb8b68df08eaac3774b3a38952b all runs: OK # git bisect start 98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796 775d01b65b5daa002a9ba60f2d2bb3b1a6ce12fb Bisecting: 1153 revisions left to test after this (roughly 10 steps) [3eb99789ca2cffecb2a4c4228341ef871bca6e08] Bluetooth: missed cpu_to_le16 conversion in hci_init4_req testing commit 3eb99789ca2cffecb2a4c4228341ef871bca6e08 with gcc (GCC) 8.1.0 kernel signature: 3b647d2bf568aac707dfc5b5e0fbdafa70a4e3fb95d2020e88528ae96e328890 run #0: crashed: WARNING in reconnect_path run #1: crashed: WARNING in reconnect_path run #2: crashed: WARNING in reconnect_path run #3: crashed: WARNING in reconnect_path run #4: crashed: WARNING in reconnect_path run #5: crashed: WARNING in reconnect_path run #6: crashed: WARNING in reconnect_path run #7: crashed: WARNING in exportfs_decode_fh run #8: OK run #9: OK # git bisect good 3eb99789ca2cffecb2a4c4228341ef871bca6e08 Bisecting: 576 revisions left to test after this (roughly 9 steps) [f401472074c6900cb0a87aa91fc4d86b34df0374] iwlwifi: mvm: fix A-MPDU reference assignment testing commit f401472074c6900cb0a87aa91fc4d86b34df0374 with gcc (GCC) 8.1.0 kernel signature: b6856a3bdd683bc28169359fc03f4619b2abcb029b5ac15df42f154ca68934ef all runs: OK # git bisect bad f401472074c6900cb0a87aa91fc4d86b34df0374 Bisecting: 288 revisions left to test after this (roughly 8 steps) [c7a6c3d2c372a592c975cda98a479287ebd169d1] rfkill: Fix incorrect check to avoid NULL pointer dereference testing commit c7a6c3d2c372a592c975cda98a479287ebd169d1 with gcc (GCC) 8.1.0 kernel signature: 244340d41a40605b5664ccf503d535072944f00e7de2e2aee9a0e3818e489c8e run #0: crashed: WARNING in reconnect_path run #1: crashed: WARNING in reconnect_path run #2: crashed: WARNING in reconnect_path run #3: crashed: WARNING in reconnect_path run #4: crashed: WARNING in reconnect_path run #5: crashed: WARNING in reconnect_path run #6: crashed: WARNING in reconnect_path run #7: crashed: WARNING in reconnect_path run #8: OK run #9: OK # git bisect good c7a6c3d2c372a592c975cda98a479287ebd169d1 Bisecting: 144 revisions left to test after this (roughly 7 steps) [babf91acca033201ce29fdb2914ea1ee64c186e2] MIPS: Prevent link failure with kcov instrumentation testing commit babf91acca033201ce29fdb2914ea1ee64c186e2 with gcc (GCC) 8.1.0 kernel signature: 8c20d18cf3705cd31b2180705e4c340367b46e0e4dc59ee091440a0d37ffca3f run #0: crashed: WARNING in reconnect_path run #1: crashed: WARNING in reconnect_path run #2: crashed: WARNING in reconnect_path run #3: crashed: WARNING in reconnect_path run #4: crashed: WARNING in reconnect_path run #5: crashed: WARNING in reconnect_path run #6: crashed: WARNING in reconnect_path run #7: OK run #8: OK run #9: OK # git bisect good babf91acca033201ce29fdb2914ea1ee64c186e2 Bisecting: 72 revisions left to test after this (roughly 6 steps) [8bac50406cca10a219aa899243d49c57ddaf7c5b] Linux 4.14.167 testing commit 8bac50406cca10a219aa899243d49c57ddaf7c5b with gcc (GCC) 8.1.0 kernel signature: 9c069ca604c98317dc2819392522a6538ef1ed159b481ee4fbe9bba5d2f829a3 all runs: crashed: WARNING in reconnect_path # git bisect good 8bac50406cca10a219aa899243d49c57ddaf7c5b Bisecting: 36 revisions left to test after this (roughly 5 steps) [d2e6f04f6ee3fe5e4f72eb1763f228c4a0c2c701] pinctrl: sh-pfc: sh7269: Add missing PCIOR0 field testing commit d2e6f04f6ee3fe5e4f72eb1763f228c4a0c2c701 with gcc (GCC) 8.1.0 kernel signature: fd8c29494ba7329a7af846764f833aacdfc8adcae907bc097aa71f760a92e9f2 all runs: OK # git bisect bad d2e6f04f6ee3fe5e4f72eb1763f228c4a0c2c701 Bisecting: 17 revisions left to test after this (roughly 4 steps) [5a5aee840210828e511cf45a94692d2854836361] drm/sun4i: hdmi: Fix double flag assignation testing commit 5a5aee840210828e511cf45a94692d2854836361 with gcc (GCC) 8.1.0 kernel signature: 2e83cc6fde8b7f178c531de2f1a5cd91655eb0517edf956a20516427118f9f52 run #0: crashed: WARNING in reconnect_path run #1: crashed: WARNING in reconnect_path run #2: crashed: WARNING in reconnect_path run #3: crashed: WARNING in reconnect_path run #4: crashed: WARNING in reconnect_path run #5: crashed: WARNING in reconnect_path run #6: crashed: WARNING in reconnect_path run #7: crashed: WARNING in reconnect_path run #8: OK run #9: OK # git bisect good 5a5aee840210828e511cf45a94692d2854836361 Bisecting: 8 revisions left to test after this (roughly 3 steps) [336384d871a9797a620063158c3d80988ea0cc47] switchtec: Remove immediate status check after submitting MRPC command testing commit 336384d871a9797a620063158c3d80988ea0cc47 with gcc (GCC) 8.1.0 kernel signature: 357cf6cfabe38175ae6b78c167ea9f53d129483f61888fedb5af1a362e25ec93 all runs: OK # git bisect bad 336384d871a9797a620063158c3d80988ea0cc47 Bisecting: 4 revisions left to test after this (roughly 2 steps) [b6e209a13a61b65848e214319e3348e5e23346cb] exportfs: fix 'passing zero to ERR_PTR()' warning testing commit b6e209a13a61b65848e214319e3348e5e23346cb with gcc (GCC) 8.1.0 kernel signature: 34c507a114f945209bdbd7bb35f2bd9d6b2dbb0e749f2b3d7c676e1a1ab5e01e all runs: OK # git bisect bad b6e209a13a61b65848e214319e3348e5e23346cb Bisecting: 1 revision left to test after this (roughly 1 step) [e3708b8b2762296d7dde4fcac127c5bfffc3b8e5] NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks testing commit e3708b8b2762296d7dde4fcac127c5bfffc3b8e5 with gcc (GCC) 8.1.0 kernel signature: d8d363a3fb59037a0ba65fee4030d49044973ef89eb6227772ebaa61a253f87c all runs: crashed: WARNING in reconnect_path # git bisect good e3708b8b2762296d7dde4fcac127c5bfffc3b8e5 Bisecting: 0 revisions left to test after this (roughly 0 steps) [8a0c3bc2cf9e08a6abed982fdeba0e8aca48fbe6] pcrypt: use format specifier in kobject_add testing commit 8a0c3bc2cf9e08a6abed982fdeba0e8aca48fbe6 with gcc (GCC) 8.1.0 kernel signature: d4d04158d292fa35174dda34acde9d39dbaa9647ee3d6a6763e087f881ae71df all runs: crashed: WARNING in reconnect_path # git bisect good 8a0c3bc2cf9e08a6abed982fdeba0e8aca48fbe6 b6e209a13a61b65848e214319e3348e5e23346cb is the first bad commit commit b6e209a13a61b65848e214319e3348e5e23346cb Author: YueHaibing Date: Mon Nov 19 11:32:41 2018 +0800 exportfs: fix 'passing zero to ERR_PTR()' warning [ Upstream commit 909e22e05353a783c526829427e9a8de122fba9c ] Fix a static code checker warning: fs/exportfs/expfs.c:171 reconnect_one() warn: passing zero to 'ERR_PTR' The error path for lookup_one_len_unlocked failure should set err to PTR_ERR. Fixes: bbf7a8a3562f ("exportfs: move most of reconnect_path to helper function") Signed-off-by: YueHaibing Signed-off-by: Al Viro Signed-off-by: Sasha Levin fs/exportfs/expfs.c | 1 + 1 file changed, 1 insertion(+) culprit signature: 34c507a114f945209bdbd7bb35f2bd9d6b2dbb0e749f2b3d7c676e1a1ab5e01e parent signature: d4d04158d292fa35174dda34acde9d39dbaa9647ee3d6a6763e087f881ae71df revisions tested: 13, total time: 3h45m24.282631883s (build: 1h50m42.070392662s, test: 1h53m4.913661991s) first good commit: b6e209a13a61b65848e214319e3348e5e23346cb exportfs: fix 'passing zero to ERR_PTR()' warning cc: ["sashal@kernel.org" "viro@zeniv.linux.org.uk" "yuehaibing@huawei.com"]