ci starts bisection 2023-03-05 13:47:57.91689701 +0000 UTC m=+358404.288149856 bisecting cause commit starting from b01fe98d34f3bed944a93bd8119fed80c856fad8 building syzkaller on f8902b5747fbe3d5b860bd782eec63fc9c7da6e7 ensuring issue is reproducible on original commit b01fe98d34f3bed944a93bd8119fed80c856fad8 testing commit b01fe98d34f3bed944a93bd8119fed80c856fad8 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 6fa6d3ae48e032891639460189e95907f75f63cb02d1ff318c7337d5b32b4d51 run #0: crashed: kernel BUG in __block_write_full_page run #1: crashed: kernel BUG in __block_write_full_page run #2: crashed: kernel BUG in __block_write_full_page run #3: crashed: kernel BUG in __block_write_full_page run #4: crashed: kernel BUG in __block_write_full_page run #5: crashed: kernel BUG in __block_write_full_page run #6: crashed: kernel BUG in __block_write_full_page run #7: crashed: kernel BUG in __block_write_full_page run #8: crashed: kernel BUG in __block_write_full_page run #9: crashed: kernel BUG in __block_write_full_page run #10: crashed: kernel BUG in __block_write_full_page run #11: crashed: kernel BUG in __block_write_full_page run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fa70b269c3a778f0c016c24ecee58d712b7ac1ba3ac7854f00a8302d709e7d63 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: OK run #7: OK run #8: OK run #9: OK testing release v6.1 testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 9bd5ab45725280b6c59d6342dbba775d20715a1aee1f1af576c3a2be52156c74 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: OK run #7: OK run #8: OK run #9: OK testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4bfc0276e29c1ba4587588cd56846f8537ad97012bd2a55d4b7d7f1ac8266c13 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: OK run #7: OK run #8: OK run #9: OK testing release v5.19 testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f580b928855178eea5087fd2713c67955af2fbd0315b554d3740dd7ee8a85fa0 all runs: OK # git bisect start 4fe89d07dcc2804c8b562f6c7896a45643d34b2f 3d7cb6b04c3f3115719235cc6866b10326de34cd Bisecting: 8384 revisions left to test after this (roughly 13 steps) [78acd4ca433425e6dd4032cfc2156c60e34931f2] usb: cdns3: Don't use priv_dev uninitialized in cdns3_gadget_ep_enable() testing commit 78acd4ca433425e6dd4032cfc2156c60e34931f2 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 00b7f77e91b5417a6cf5ee2a7a995f2dc8236adebb44cf42563972bafe662470 run #0: basic kernel testing failed: WARNING in mgmt_index_removed run #1: basic kernel testing failed: WARNING in mgmt_index_removed run #2: basic kernel testing failed: WARNING in mgmt_index_removed run #3: basic kernel testing failed: WARNING in mgmt_index_removed run #4: basic kernel testing failed: WARNING in mgmt_index_removed run #5: basic kernel testing failed: WARNING in mgmt_index_removed run #6: basic kernel testing failed: WARNING in mgmt_index_removed run #7: basic kernel testing failed: WARNING in mgmt_index_removed run #8: basic kernel testing failed: WARNING in mgmt_index_removed run #9: boot failed: can't ssh into the instance # git bisect skip 78acd4ca433425e6dd4032cfc2156c60e34931f2 Bisecting: 8384 revisions left to test after this (roughly 13 steps) [586fb2641371cf7f23a401ab1c79b17e3ec457f4] ASoC: soc-core.c: fixup snd_soc_of_get_dai_link_cpus() testing commit 586fb2641371cf7f23a401ab1c79b17e3ec457f4 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 90f06dc61c6c5f950b78a60c08b3faa4e82bfff104aa818f0306f0563394d059 run #0: boot failed: INFO: task hung in add_early_randomness run #1: boot failed: INFO: task hung in add_early_randomness 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 586fb2641371cf7f23a401ab1c79b17e3ec457f4 Bisecting: 8057 revisions left to test after this (roughly 13 steps) [cfeafd94668910334a77c9437a18212baf9f5610] Merge tag 'driver-core-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core testing commit cfeafd94668910334a77c9437a18212baf9f5610 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f22453c8828714af606d13b22853b7eab99cbb98775c7d6d03b4b3822983c974 all runs: basic kernel testing failed: WARNING in mgmt_index_removed # git bisect skip cfeafd94668910334a77c9437a18212baf9f5610 Bisecting: 8057 revisions left to test after this (roughly 13 steps) [332f1795ca202489c665a75e62e18ff6284de077] Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression testing commit 332f1795ca202489c665a75e62e18ff6284de077 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 8ab0d967ad6ea7899be5109ba4f5c9ce7dcd13749a756c1539c9c4d07c6df6e6 all runs: basic kernel testing failed: WARNING in mgmt_index_removed # git bisect skip 332f1795ca202489c665a75e62e18ff6284de077 Bisecting: 8057 revisions left to test after this (roughly 13 steps) [4a445b7b6178d88956192c0202463063f52e8667] btrfs: don't merge pages into bio if their page offset is not contiguous testing commit 4a445b7b6178d88956192c0202463063f52e8667 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b72375477d2228f153d479551ec30c8775863104fc67a331829be13fcd891629 all runs: OK # git bisect good 4a445b7b6178d88956192c0202463063f52e8667 Bisecting: 7846 revisions left to test after this (roughly 13 steps) [9e2e5ea3b28f81512c792f30729edb1db0c21f6a] Merge tag 'usb-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb testing commit 9e2e5ea3b28f81512c792f30729edb1db0c21f6a gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 74c08e114fbf4a22d954b4ac2013d993a4776828d542551dbedffd23ff7014da all runs: basic kernel testing failed: WARNING in mgmt_index_removed # git bisect skip 9e2e5ea3b28f81512c792f30729edb1db0c21f6a Bisecting: 7846 revisions left to test after this (roughly 13 steps) [f24d1d45084155c59a135506a37bc4db10703fe6] drm/i915: Nuke PCH_MCC testing commit f24d1d45084155c59a135506a37bc4db10703fe6 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 34b3ad7bf5dc5c80e8dc23253a19c8fbf542025023060908ee2982736bdaf10f all runs: OK # git bisect good f24d1d45084155c59a135506a37bc4db10703fe6 Bisecting: 7846 revisions left to test after this (roughly 13 steps) [9a0b36266f7a83912592052035b84f13b12e30da] perf stat: Add topdown metrics in the default perf stat on the hybrid machine testing commit 9a0b36266f7a83912592052035b84f13b12e30da gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 838658a86d540570ff85d9a8a2f7b8a0834c044f9d244d79815f278521215cf2 all runs: OK # git bisect good 9a0b36266f7a83912592052035b84f13b12e30da Bisecting: 7900 revisions left to test after this (roughly 13 steps) [f4d92d9757e6b0adf24d227e414dac867555c9e2] ASoC: Makefile: Fix simultaneous build of KUNIT tests testing commit f4d92d9757e6b0adf24d227e414dac867555c9e2 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 58ef090f8ec6aebe6874be80784ce92d36dbf604ed9eff3aa1b839c38f920052 run #0: boot failed: INFO: task hung in add_early_randomness run #1: boot failed: INFO: task hung in add_early_randomness 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 f4d92d9757e6b0adf24d227e414dac867555c9e2 Bisecting: 7726 revisions left to test after this (roughly 13 steps) [2f945a792f67815abca26fa8a5e863ccf3fa1181] of: fdt: fix off-by-one error in unflatten_dt_nodes() testing commit 2f945a792f67815abca26fa8a5e863ccf3fa1181 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ceb0cf18e8072ff7a80997d77e369b14c30924c32cca7a68917c507a20ca6dcf run #0: boot failed: BUG: unable to handle kernel paging request in kernel_execve run #1: boot failed: WARNING in copy_process run #2: boot failed: general protection fault in netdev_queue_update_kobjects run #3: boot failed: BUG: unable to handle kernel paging request in dup_task_struct run #4: boot failed: general protection fault in netdev_queue_update_kobjects run #5: boot failed: general protection fault in netdev_queue_update_kobjects run #6: boot failed: general protection fault in rcu_core run #7: boot failed: BUG: unable to handle kernel paging request in copy_namespaces run #8: boot failed: general protection fault in netdev_queue_update_kobjects run #9: boot failed: general protection fault in netdev_queue_update_kobjects # git bisect skip 2f945a792f67815abca26fa8a5e863ccf3fa1181 Bisecting: 7726 revisions left to test after this (roughly 13 steps) [90c3ca3f247d1a95fc47232e9f0aef114becd605] scsi: mpt3sas: Remove flush_scheduled_work() call testing commit 90c3ca3f247d1a95fc47232e9f0aef114becd605 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4e2962627474cc099ba7b56e1749b9662daeefc8c3107f160f73edd9aa65395f run #0: boot failed: INFO: task hung in add_early_randomness run #1: crashed: general protection fault in mem_cgroup_track_foreign_dirty_slowpath run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK reproducer seems to be flaky # git bisect bad 90c3ca3f247d1a95fc47232e9f0aef114becd605 Bisecting: 48 revisions left to test after this (roughly 6 steps) [476da8faa336f104cb5183ff51615335d1ff5d1f] scsi: qla2xxx: Add a new v2 dport diagnostic feature testing commit 476da8faa336f104cb5183ff51615335d1ff5d1f gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 8efc0403bfe435f67ae936fb9dffa46dd1ca5d393a5d1fb0ac4f2426ec67ce20 run #0: boot failed: INFO: task hung in add_early_randomness run #1: boot failed: INFO: task hung in add_early_randomness run #2: boot failed: INFO: task hung in add_early_randomness run #3: boot failed: INFO: task hung in add_early_randomness run #4: boot failed: INFO: task hung in add_early_randomness run #5: boot failed: INFO: task hung in add_early_randomness run #6: boot failed: INFO: task hung in add_early_randomness run #7: boot failed: INFO: task hung in add_early_randomness run #8: boot failed: INFO: task hung in add_early_randomness run #9: boot failed: INFO: task hung in add_early_randomness run #10: boot failed: INFO: task hung in add_early_randomness run #11: boot failed: INFO: task hung in add_early_randomness run #12: boot failed: INFO: task hung in add_early_randomness run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect skip 476da8faa336f104cb5183ff51615335d1ff5d1f Bisecting: 48 revisions left to test after this (roughly 6 steps) [4dc48a107a146cade61097958ff2366c13da1f60] scsi: qla2xxx: Update version to 10.02.07.500-k testing commit 4dc48a107a146cade61097958ff2366c13da1f60 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: d75b7691ab02a1e49bf2e5fe475f8968ff612a6abc5a6be5d2b8af2439c20a2f run #0: crashed: general protection fault in mem_cgroup_track_foreign_dirty_slowpath run #1: boot failed: INFO: task hung in add_early_randomness run #2: boot failed: INFO: task hung in add_early_randomness run #3: boot failed: INFO: task hung in add_early_randomness run #4: boot failed: INFO: task hung in add_early_randomness run #5: boot failed: INFO: task hung in add_early_randomness run #6: boot failed: INFO: task hung in add_early_randomness run #7: boot failed: INFO: task hung in add_early_randomness run #8: boot failed: INFO: task hung in add_early_randomness run #9: boot failed: INFO: task hung in add_early_randomness run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 4dc48a107a146cade61097958ff2366c13da1f60 Bisecting: 4 revisions left to test after this (roughly 3 steps) [cf79716e6636400ae38c37bc8a652b1e522abbba] scsi: qla2xxx: edif: Synchronize NPIV deletion with authentication application testing commit cf79716e6636400ae38c37bc8a652b1e522abbba gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 87d727456f394ee1bfbebe40e2874db455b6109c43420b99bb9f35fed83cac30 run #0: boot failed: INFO: task hung in add_early_randomness run #1: boot failed: INFO: task hung in add_early_randomness run #2: boot failed: INFO: task hung in add_early_randomness run #3: boot failed: INFO: task hung in add_early_randomness run #4: boot failed: INFO: task hung in add_early_randomness run #5: boot failed: INFO: task hung in add_early_randomness run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect good cf79716e6636400ae38c37bc8a652b1e522abbba Bisecting: 2 revisions left to test after this (roughly 1 step) [1040e5f75ddf56fdd571a2a14b4d1a9e8ed846a9] scsi: qla2xxx: edif: Remove old doorbell interface testing commit 1040e5f75ddf56fdd571a2a14b4d1a9e8ed846a9 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 7809c15558dd917a6ccb777e50e1b79234dfb029cc2e2caf413d637a5476f86a run #0: boot failed: INFO: task hung in add_early_randomness run #1: boot failed: INFO: task hung in add_early_randomness run #2: boot failed: INFO: task hung in add_early_randomness run #3: boot failed: INFO: task hung in add_early_randomness run #4: boot failed: INFO: task hung in add_early_randomness run #5: boot failed: INFO: task hung in add_early_randomness run #6: boot failed: INFO: task hung in add_early_randomness run #7: boot failed: INFO: task hung in add_early_randomness run #8: boot failed: INFO: task hung in add_early_randomness run #9: boot failed: INFO: task hung in add_early_randomness run #10: boot failed: INFO: task hung in add_early_randomness run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect good 1040e5f75ddf56fdd571a2a14b4d1a9e8ed846a9 Bisecting: 1 revision left to test after this (roughly 1 step) [789d54a4178634850e441f60c0326124138e7269] scsi: qla2xxx: edif: Fix n2n discovery issue with secure target testing commit 789d54a4178634850e441f60c0326124138e7269 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 9219584e75f7e90af3d1c8ae571d1f1ce22c8ae8fb8e23603b29278477ea02bc run #0: boot failed: INFO: task hung in add_early_randomness run #1: boot failed: INFO: task hung in add_early_randomness run #2: boot failed: INFO: task hung in add_early_randomness run #3: boot failed: INFO: task hung in add_early_randomness run #4: boot failed: INFO: task hung in add_early_randomness run #5: boot failed: INFO: task hung in add_early_randomness run #6: boot failed: INFO: task hung in add_early_randomness run #7: boot failed: INFO: task hung in add_early_randomness run #8: boot failed: INFO: task hung in add_early_randomness run #9: boot failed: INFO: task hung in add_early_randomness run #10: boot failed: INFO: task hung in add_early_randomness run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect good 789d54a4178634850e441f60c0326124138e7269 Bisecting: 0 revisions left to test after this (roughly 0 steps) [aec55325ddec975216119da000092cb8664a3399] scsi: qla2xxx: edif: Fix n2n login retry for secure device testing commit aec55325ddec975216119da000092cb8664a3399 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: e2c628d698e20f37141f651d46df58c7c17979a5ac3193478eb67f415cf51203 run #0: boot failed: INFO: task hung in add_early_randomness run #1: boot failed: INFO: task hung in add_early_randomness run #2: boot failed: INFO: task hung in add_early_randomness run #3: boot failed: INFO: task hung in add_early_randomness run #4: boot failed: INFO: task hung in add_early_randomness run #5: boot failed: INFO: task hung in add_early_randomness run #6: boot failed: INFO: task hung in add_early_randomness run #7: boot failed: INFO: task hung in add_early_randomness run #8: boot failed: INFO: task hung in add_early_randomness run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect good aec55325ddec975216119da000092cb8664a3399 4dc48a107a146cade61097958ff2366c13da1f60 is the first bad commit commit 4dc48a107a146cade61097958ff2366c13da1f60 Author: Nilesh Javali Date: Mon Jun 6 21:46:27 2022 -0700 scsi: qla2xxx: Update version to 10.02.07.500-k Link: https://lore.kernel.org/r/20220607044627.19563-12-njavali@marvell.com Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen drivers/scsi/qla2xxx/qla_version.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) culprit signature: d75b7691ab02a1e49bf2e5fe475f8968ff612a6abc5a6be5d2b8af2439c20a2f parent signature: e2c628d698e20f37141f651d46df58c7c17979a5ac3193478eb67f415cf51203 Reproducer flagged being flaky revisions tested: 22, total time: 8h1m51.600813094s (build: 4h14m6.0857748s, test: 3h42m48.587246045s) first bad commit: 4dc48a107a146cade61097958ff2366c13da1f60 scsi: qla2xxx: Update version to 10.02.07.500-k recipients (to): ["martin.petersen@oracle.com" "njavali@marvell.com"] recipients (cc): [] crash: general protection fault in mem_cgroup_track_foreign_dirty_slowpath hfsplus: b-tree write err: -5, ino 8 hfsplus: b-tree write err: -5, ino 8 hfsplus: b-tree write err: -5, ino 8 general protection fault, probably for non-canonical address 0xdffffc0000000255: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x00000000000012a8-0x00000000000012af] CPU: 0 PID: 1370 Comm: kworker/u4:6 Not tainted 5.19.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: writeback wb_workfn (flush-7:4) RIP: 0010:mem_cgroup_track_foreign_dirty_slowpath+0xe5/0xa10 mm/memcontrol.c:4553 Code: 0b e8 af 6e a3 ff 85 c0 0f 84 67 06 00 00 65 ff 0d f8 e4 41 7e 0f 84 9f 06 00 00 49 8d 9c 24 a8 12 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 ec f5 fa ff 48 8b 2b 4c 89 e8 48 RSP: 0018:ffffc90005507020 EFLAGS: 00010006 RAX: 0000000000000255 RBX: 00000000000012a8 RCX: 0000000080000002 RDX: 0000000000000000 RSI: ffffffff89ca3ac0 RDI: ffffffff8a16cc40 RBP: ffff888146b665e0 R08: dffffc0000000000 R09: fffffbfff19e92ce R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff888146b66060 R14: 00000000ffffd875 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbbab47ec00 CR3: 0000000025e34000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1631 [inline] folio_account_dirtied mm/page-writeback.c:2550 [inline] __folio_mark_dirty+0x6f5/0xc60 mm/page-writeback.c:2590 block_dirty_folio+0x123/0x1f0 fs/buffer.c:640 hfsplus_bnode_write+0xee/0x1e0 fs/hfsplus/bnode.c:86 hfsplus_cat_write_inode+0x9e6/0xf50 write_inode fs/fs-writeback.c:1434 [inline] __writeback_single_inode+0x4c8/0xbc0 fs/fs-writeback.c:1646 writeback_sb_inodes+0x891/0x15f0 fs/fs-writeback.c:1859 wb_writeback+0x39e/0xa00 fs/fs-writeback.c:2033 wb_do_writeback fs/fs-writeback.c:2176 [inline] wb_workfn+0x3ea/0xe40 fs/fs-writeback.c:2216 process_one_work+0x7b9/0xef0 kernel/workqueue.c:2289 worker_thread+0x8c9/0xfd0 kernel/workqueue.c:2436 kthread+0x232/0x2b0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:mem_cgroup_track_foreign_dirty_slowpath+0xe5/0xa10 mm/memcontrol.c:4553 Code: 0b e8 af 6e a3 ff 85 c0 0f 84 67 06 00 00 65 ff 0d f8 e4 41 7e 0f 84 9f 06 00 00 49 8d 9c 24 a8 12 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 ec f5 fa ff 48 8b 2b 4c 89 e8 48 RSP: 0018:ffffc90005507020 EFLAGS: 00010006 RAX: 0000000000000255 RBX: 00000000000012a8 RCX: 0000000080000002 RDX: 0000000000000000 RSI: ffffffff89ca3ac0 RDI: ffffffff8a16cc40 RBP: ffff888146b665e0 R08: dffffc0000000000 R09: fffffbfff19e92ce R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff888146b66060 R14: 00000000ffffd875 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbbab47ec00 CR3: 0000000025e34000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0b e8 or %eax,%ebp 2: af scas %es:(%rdi),%eax 3: 6e outsb %ds:(%rsi),(%dx) 4: a3 ff 85 c0 0f 84 67 movabs %eax,0x667840fc085ff b: 06 00 d: 00 65 ff add %ah,-0x1(%rbp) 10: 0d f8 e4 41 7e or $0x7e41e4f8,%eax 15: 0f 84 9f 06 00 00 je 0x6ba 1b: 49 8d 9c 24 a8 12 00 lea 0x12a8(%r12),%rbx 22: 00 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 ec f5 fa ff callq 0xfffaf625 39: 48 8b 2b mov (%rbx),%rbp 3c: 4c 89 e8 mov %r13,%rax 3f: 48 rex.W