Kernel BUG noticed on arm architecture on linux next 20200824 tag kernel while running LTP CVE "thp01 -I 120" , LTP mm, LTP hugetlb test cases and libhugetlbfs test suite. metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: d8be0e12a522d53a45f85fb241ffd06108d40b03 git describe: next-20200824 make_kernelversion: 5.9.0-rc2 kernel-config: https://builds.tuxbuild.com/ISOcMRs1P2wwVCv7Uhpe5A/kernel.config steps to reproduce: boot arm device or qemu_arm # cd /opt/ltp/testcases/bin # ./thp01 -I 120 output: ========= thp01.c:98: PASS: system didn't crash. thp01.c:98: PASS: system didn't crash. [ 67.545247] BUG: Bad page state in process true pfn:a8fed [ 67.550767] page:9640c0ab refcount:0 mapcount:-1024 mapping:00000000 index:0x0 pfn:0xa8fed [ 67.559068] flags: 0x0() [ 67.561616] raw: 00000000 00000000 00000100 00000122 00000000 00000000 00000000 00000000 [ 67.569742] raw: fffffbff 00000000 00000000 00000000 [ 67.574725] page dumped because: nonzero mapcount [ 67.579446] Modules linked in: snd_soc_simple_card snd_soc_simple_card_utils snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore [ 67.592848] CPU: 0 PID: 670 Comm: true Not tainted 5.9.0-rc2-next-20200824 #1 [ 67.600012] Hardware name: Generic DRA74X (Flattened Device Tree) [ 67.606131] Backtrace: [ 67.608601] [<c040e860>] (dump_backtrace) from [<c040ebd4>] (show_stack+0x20/0x24) [ 67.616205] r7:c20ccad4 r6:00000000 r5:60010193 r4:c20ccad4 [ 67.621894] [<c040ebb4>] (show_stack) from [<c0940e58>] (dump_stack+0xec/0x118) [ 67.629239] [<c0940d6c>] (dump_stack) from [<c05db030>] (bad_page+0xf8/0x128) [ 67.636405] r10:00000000 r9:0030f231 r8:0000001f r7:c19eb22c r6:eebaec70 r5:c2003d00 [ 67.644267] r4:c2289b14 r3:4c6a9f02 [ 67.647857] [<c05daf38>] (bad_page) from [<c05db0ec>] (check_free_page_bad+0x8c/0x90) [ 67.655721] r7:efc2d130 r6:efc2d130 r5:0000001f r4:00000000 [ 67.661408] [<c05db060>] (check_free_page_bad) from [<c05dc41c>] (free_pcppages_bulk+0x1d4/0x778) [ 67.670316] r5:0000001f r4:efc2d13c [ 67.673909] [<c05dc248>] (free_pcppages_bulk) from [<c05dcb98>] (free_unref_page_commit+0xd4/0xf8) [ 67.682907] r10:efc29f7c r9:d28a1c10 r8:20010113 r7:eeb96168 r6:c21fd900 r5:efc2d13c [ 67.690767] r4:2dc68000 [ 67.693312] [<c05dcac4>] (free_unref_page_commit) from [<c05ddb80>] (free_unref_page+0x7c/0x9c) [ 67.702046] r7:00080000 r6:eeb96160 r5:20010113 r4:000a87b2 [ 67.707730] [<c05ddb04>] (free_unref_page) from [<c05ddbec>] (__free_pages+0x4c/0x58) [ 67.715593] r7:c220427c r6:e87b2014 r5:00000003 r4:00000000 [ 67.721280] [<c05ddba0>] (__free_pages) from [<c05ddcf4>] (free_pages.part.0+0x34/0x38) [ 67.729317] r5:00000003 r4:e87b2000 [ 67.732907] [<c05ddcc0>] (free_pages.part.0) from [<c05ddd18>] (free_pages+0x20/0x24) [ 67.740779] [<c05ddcf8>] (free_pages) from [<c05cdad8>] (tlb_remove_table_rcu+0x50/0x54) [ 67.748911] [<c05cda88>] (tlb_remove_table_rcu) from [<c04d31e4>] (rcu_core+0x26c/0xa9c) [ 67.757035] r7:c220427c r6:c2004f38 r5:e87b2000 r4:ffffe000 [ 67.762721] [<c04d2f78>] (rcu_core) from [<c04d3a2c>] (rcu_core_si+0x18/0x1c) [ 67.769886] r10:d28a0000 r9:00000200 r8:00000100 r7:c2203ee4 r6:00000009 r5:0000000a [ 67.777749] r4:c20030a4 [ 67.780297] [<c04d3a14>] (rcu_core_si) from [<c0401edc>] (__do_softirq+0x1ac/0x480) [ 67.787988] [<c0401d30>] (__do_softirq) from [<c0458e38>] (irq_exit+0xdc/0x104) [ 67.795327] r10:e8632dd0 r9:fa213000 r8:e98dc000 r7:00000000 r6:00000001 r5:00000000 [ 67.803189] r4:ffffe000 [ 67.805737] [<c0458d5c>] (irq_exit) from [<c04b9fb4>] (__handle_domain_irq+0x70/0xc0) [ 67.813599] r5:00000000 r4:c1fc0290 [ 67.817192] [<c04b9f44>] (__handle_domain_irq) from [<c040182c>] (gic_handle_irq+0x68/0xac) [ 67.825579] r9:fa213000 r8:fa21200c r7:d28a1d38 r6:c20cd210 r5:fa212000 r4:c2006a20 [ 67.833357] [<c04017c4>] (gic_handle_irq) from [<c0400bfc>] (__irq_svc+0x5c/0x7c) [ 67.840870] Exception stack(0xd28a1d38 to 0xd28a1d80) [ 67.845940] 1d20: 00000000 e714b004 [ 67.854153] 1d40: e8632de0 be974000 e714b000 40048000 e8632a90 40036000 e8632c98 e714b004 [ 67.862364] 1d60: e8632dd0 d28a1dc4 e8632a90 d28a1d88 40048000 c05cb290 90010013 ffffffff [ 67.870577] r9:d28a0000 r8:e8632c98 r7:d28a1d6c r6:ffffffff r5:90010013 r4:c05cb290 [ 67.878355] [<c05caf50>] (__do_munmap) from [<c05cb424>] (__vm_munmap+0x7c/0xc4) [ 67.885782] r10:e714b000 r9:00000000 r8:e714b040 r7:00012000 r6:d28a1ddc r5:40036000 [ 67.893646] r4:d28a0000 [ 67.896193] [<c05cb3a8>] (__vm_munmap) from [<c05cb488>] (vm_munmap+0x1c/0x20) [ 67.903444] r10:00000000 r9:e84289c0 r8:00032000 r7:00000802 r6:00000000 r5:40016000 [ 67.911307] r4:00020000 [ 67.913853] [<c05cb46c>] (vm_munmap) from [<c069e984>] (elf_map+0x94/0xf8) [ 67.920759] [<c069e8f0>] (elf_map) from [<c06a07f0>] (load_elf_binary+0x9e0/0x13f0) [ 67.928447] r8:d28a0000 r7:00000005 r6:00000000 r5:e72f60e0 r4:00000000 [ 67.935180] [<c069fe10>] (load_elf_binary) from [<c062e2c0>] (bprm_execve+0x324/0x6f0) [ 67.943129] r10:c207d280 r9:e87fc05c r8:fffffff8 r7:00000006 r6:c228de30 r5:c2082ac4 [ 67.950990] r4:e87fc000 [ 67.953532] [<c062df9c>] (bprm_execve) from [<c062e7e0>] (do_execveat_common+0x154/0x178) [ 67.961745] r10:0000000b r9:be97da44 r8:000383c8 r7:ffffff9c r6:e856b000 r5:e87fc000 [ 67.969607] r4:00000000 [ 67.972152] [<c062e68c>] (do_execveat_common) from [<c062f524>] (sys_execve+0x40/0x48) [ 67.980103] r9:d28a0000 r8:c0400364 r7:0000000b r6:be97da44 r5:be97da44 r4:000383c8 [ 67.987880] [<c062f4e4>] (sys_execve) from [<c04001a0>] (ret_fast_syscall+0x0/0x28) [ 67.995566] Exception stack(0xd28a1fa8 to 0xd28a1ff0) [ 68.000637] 1fa0: 00045320 000383c8 be97d760 000383c8 be97da44 65757274 [ 68.008849] 1fc0: 00045320 000383c8 be97da44 0000000b 00000005 0000009a be97d760 be97d834 [ 68.017061] 1fe0: be97d769 be97d75c b6ef5da0 b6ef56ac [ 68.022131] r5:000383c8 r4:00045320 [ 68.025720] Disabling lock debugging due to kernel taint [ 68.031053] BUG: Bad page state in process true pfn:a1c71 [ 68.036563] page:0f0cc66e refcount:0 mapcount:-1024 mapping:00000000 index:0x0 pfn:0xa1c71 [ 68.044861] flags: 0x0() [ 68.047408] raw: 00000000 00000000 00000100 00000122 00000000 00000000 00000000 00000000 [ 68.055530] raw: fffffbff 00000000 00000000 00000000 [ 68.060514] page dumped because: nonzero mapcount [ 68.065235] Modules linked in: snd_soc_simple_card snd_soc_simple_card_utils snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore [ 68.078631] CPU: 0 PID: 670 Comm: true Tainted: G B 5.9.0-rc2-next-20200824 #1 [ 68.087188] Hardware name: Generic DRA74X (Flattened Device Tree) [ 68.093305] Backtrace: [ 68.095767] [<c040e860>] (dump_backtrace) from [<c040ebd4>] (show_stack+0x20/0x24) [ 68.103369] r7:c20ccad4 r6:00000000 r5:60010193 r4:c20ccad4 [ 68.109054] [<c040ebb4>] (show_stack) from [<c0940e58>] (dump_stack+0xec/0x118) [ 68.116394] [<c0940d6c>] (dump_stack) from [<c05db030>] (bad_page+0xf8/0x128) [ 68.123562] r10:00000001 r9:0030f231 r8:0000001d r7:c19eb22c r6:eea54530 r5:0000001d [ 68.131426] r4:c2289b14 r3:4c6a9f02 [ 68.135018] [<c05daf38>] (bad_page) from [<c05db0ec>] (check_free_page_bad+0x8c/0x90) [ 68.142880] r7:efc2d130 r6:efc2d130 r5:0000001d r4:00000000 [ 68.148565] [<c05db060>] (check_free_page_bad) from [<c05dc41c>] (free_pcppages_bulk+0x1d4/0x778) [ 68.157473] r5:0000001d r4:efc2d13c [ 68.161063] [<c05dc248>] (free_pcppages_bulk) from [<c05dcb98>] (free_unref_page_commit+0xd4/0xf8) [ 68.170059] r10:efc29f7c r9:d28a1c10 r8:20010113 r7:eeb96168 r6:c21fd900 r5:efc2d13c [ 68.177919] r4:2dc68000 [ 68.180464] [<c05dcac4>] (free_unref_page_commit) from [<c05ddb80>] (free_unref_page+0x7c/0x9c) [ 68.189199] r7:00080000 r6:eeb96160 r5:20010113 r4:000a87b2 [ 68.194884] [<c05ddb04>] (free_unref_page) from [<c05ddbec>] (__free_pages+0x4c/0x58) [ 68.202746] r7:c220427c r6:e87b2014 r5:00000003 r4:00000000 [ 68.208430] [<c05ddba0>] (__free_pages) from [<c05ddcf4>] (free_pages.part.0+0x34/0x38) [ 68.216464] r5:00000003 r4:e87b2000 [ 68.220057] [<c05ddcc0>] (free_pages.part.0) from [<c05ddd18>] (free_pages+0x20/0x24) [ 68.227922] [<c05ddcf8>] (free_pages) from [<c05cdad8>] (tlb_remove_table_rcu+0x50/0x54) [ 68.236050] [<c05cda88>] (tlb_remove_table_rcu) from [<c04d31e4>] (rcu_core+0x26c/0xa9c) [ 68.244173] r7:c220427c r6:c2004f38 r5:e87b2000 r4:ffffe000 [ 68.249859] [<c04d2f78>] (rcu_core) from [<c04d3a2c>] (rcu_core_si+0x18/0x1c) [ 68.257026] r10:d28a0000 r9:00000200 r8:00000100 r7:c2203ee4 r6:00000009 r5:0000000a [ 68.264886] r4:c20030a4 [ 68.267430] [<c04d3a14>] (rcu_core_si) from [<c0401edc>] (__do_softirq+0x1ac/0x480) [ 68.275120] [<c0401d30>] (__do_softirq) from [<c0458e38>] (irq_exit+0xdc/0x104) [ 68.282461] r10:e8632dd0 r9:fa213000 r8:e98dc000 r7:00000000 r6:00000001 r5:00000000 [ 68.290325] r4:ffffe000 [ 68.292870] [<c0458d5c>] (irq_exit) from [<c04b9fb4>] (__handle_domain_irq+0x70/0xc0) [ 68.300730] r5:00000000 r4:c1fc0290 [ 68.304321] [<c04b9f44>] (__handle_domain_irq) from [<c040182c>] (gic_handle_irq+0x68/0xac) [ 68.312707] r9:fa213000 r8:fa21200c r7:d28a1d38 r6:c20cd210 r5:fa212000 r4:c2006a20 [ 68.320483] [<c04017c4>] (gic_handle_irq) from [<c0400bfc>] (__irq_svc+0x5c/0x7c) [ 68.327995] Exception stack(0xd28a1d38 to 0xd28a1d80) [ 68.333064] 1d20: 00000000 e714b004 [ 68.341278] 1d40: e8632de0 be974000 e714b000 40048000 e8632a90 40036000 e8632c98 e714b004 [ 68.349489] 1d60: e8632dd0 d28a1dc4 e8632a90 d28a1d88 40048000 c05cb290 90010013 ffffffff [ 68.357702] r9:d28a0000 r8:e8632c98 r7:d28a1d6c r6:ffffffff r5:90010013 r4:c05cb290 [ 68.365481] [<c05caf50>] (__do_munmap) from [<c05cb424>] (__vm_munmap+0x7c/0xc4) [ 68.372908] r10:e714b000 r9:00000000 r8:e714b040 r7:00012000 r6:d28a1ddc r5:40036000 [ 68.380768] r4:d28a0000 [ 68.383312] [<c05cb3a8>] (__vm_munmap) from [<c05cb488>] (vm_munmap+0x1c/0x20) [ 68.390568] r10:00000000 r9:e84289c0 r8:00032000 r7:00000802 r6:00000000 r5:40016000 [ 68.398430] r4:00020000 [ 68.400974] [<c05cb46c>] (vm_munmap) from [<c069e984>] (elf_map+0x94/0xf8) [ 68.407877] [<c069e8f0>] (elf_map) from [<c06a07f0>] (load_elf_binary+0x9e0/0x13f0) [ 68.415568] r8:d28a0000 r7:00000005 r6:00000000 r5:e72f60e0 r4:00000000 [ 68.422298] [<c069fe10>] (load_elf_binary) from [<c062e2c0>] (bprm_execve+0x324/0x6f0) [ 68.430248] r10:c207d280 r9:e87fc05c r8:fffffff8 r7:00000006 r6:c228de30 r5:c2082ac4 [ 68.438110] r4:e87fc000 [ 68.440652] [<c062df9c>] (bprm_execve) from [<c062e7e0>] (do_execveat_common+0x154/0x178) [ 68.448867] r10:0000000b r9:be97da44 r8:000383c8 r7:ffffff9c r6:e856b000 r5:e87fc000 [ 68.456728] r4:00000000 [ 68.459271] [<c062e68c>] (do_execveat_common) from [<c062f524>] (sys_execve+0x40/0x48) [ 68.467221] r9:d28a0000 r8:c0400364 r7:0000000b r6:be97da44 r5:be97da44 r4:000383c8 [ 68.474999] [<c062f4e4>] (sys_execve) from [<c04001a0>] (ret_fast_syscall+0x0/0x28) [ 68.482685] Exception stack(0xd28a1fa8 to 0xd28a1ff0) [ 68.487755] 1fa0: 00045320 000383c8 be97d760 000383c8 be97da44 65757274 [ 68.495966] 1fc0: 00045320 000383c8 be97da44 0000000b 00000005 0000009a be97d760 be97d834 [ 68.504179] 1fe0: be97d769 be97d75c b6ef5da0 b6ef56ac [ 68.509249] r5:000383c8 r4:00045320 [ 68.512836] BUG: Bad page state in process true pfn:a8feb [ 68.518347] page:08571436 refcount:0 mapcount:-1024 mapping:00000000 index:0x0 pfn:0xa8feb [ 68.526644] flags: 0x0() [ 68.529187] raw: 00000000 00000000 00000100 00000122 00000000 00000000 00000000 00000000 [ 68.537311] raw: fffffbff 00000000 00000000 00000000 [ 68.542295] page dumped because: nonzero mapcount [ 68.547016] Modules linked in: snd_soc_simple_card snd_soc_simple_card_utils snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore [ 68.560408] CPU: 0 PID: 670 Comm: true Tainted: G B 5.9.0-rc2-next-20200824 #1 [ 68.568967] Hardware name: Generic DRA74X (Flattened Device Tree) [ 68.575084] Backtrace: [ 68.577543] [<c040e860>] (dump_backtrace) from [<c040ebd4>] (show_stack+0x20/0x24) [ 68.585145] r7:c20ccad4 r6:00000000 r5:60010193 r4:c20ccad4 [ 68.590829] [<c040ebb4>] (show_stack) from [<c0940e58>] (dump_stack+0xec/0x118) [ 68.598170] [<c0940d6c>] (dump_stack) from [<c05db030>] (bad_page+0xf8/0x128) [ 68.605335] r10:00000002 r9:0030f231 r8:0000001b r7:c19eb22c r6:eebaec10 r5:0000001b [ 68.613198] r4:c2289b14 r3:4c6a9f02 [ 68.616791] [<c05daf38>] (bad_page) from [<c05db0ec>] (check_free_page_bad+0x8c/0x90) [ 68.624654] r7:efc2d130 r6:efc2d130 r5:0000001b r4:00000000 [ 68.630340] [<c05db060>] (check_free_page_bad) from [<c05dc41c>] (free_pcppages_bulk+0x1d4/0x778) [ 68.639247] r5:0000001b r4:efc2d13c [ 68.642838] [<c05dc248>] (free_pcppages_bulk) from [<c05dcb98>] (free_unref_page_commit+0xd4/0xf8) [ 68.651833] r10:efc29f7c r9:d28a1c10 r8:20010113 r7:eeb96168 r6:c21fd900 r5:efc2d13c [ 68.659697] r4:2dc68000 [ 68.662243] [<c05dcac4>] (free_unref_page_commit) from [<c05ddb80>] (free_unref_page+0x7c/0x9c) [ 68.670976] r7:00080000 r6:eeb96160 r5:20010113 r4:000a87b2 [ 68.676659] [<c05ddb04>] (free_unref_page) from [<c05ddbec>] (__free_pages+0x4c/0x58) [ 68.684520] r7:c220427c r6:e87b2014 r5:00000003 r4:00000000 [ 68.690203] [<c05ddba0>] (__free_pages) from [<c05ddcf4>] (free_pages.part.0+0x34/0x38) [ 68.698239] r5:00000003 r4:e87b2000 [ 68.701831] [<c05ddcc0>] (free_pages.part.0) from [<c05ddd18>] (free_pages+0x20/0x24) [ 68.709699] [<c05ddcf8>] (free_pages) from [<c05cdad8>] (tlb_remove_table_rcu+0x50/0x54) [ 68.717827] [<c05cda88>] (tlb_remove_table_rcu) from [<c04d31e4>] (rcu_core+0x26c/0xa9c) [ 68.725950] r7:c220427c r6:c2004f38 r5:e87b2000 r4:ffffe000 [ 68.731634] [<c04d2f78>] (rcu_core) from [<c04d3a2c>] (rcu_core_si+0x18/0x1c) [ 68.738801] r10:d28a0000 r9:00000200 r8:00000100 r7:c2203ee4 r6:00000009 r5:0000000a [ 68.746661] r4:c20030a4 [ 68.749207] [<c04d3a14>] (rcu_core_si) from [<c0401edc>] (__do_softirq+0x1ac/0x480) [ 68.756898] [<c0401d30>] (__do_softirq) from [<c0458e38>] (irq_exit+0xdc/0x104) [ 68.764238] r10:e8632dd0 r9:fa213000 r8:e98dc000 r7:00000000 r6:00000001 r5:00000000 [ 68.772098] r4:ffffe000 [ 68.774644] [<c0458d5c>] (irq_exit) from [<c04b9fb4>] (__handle_domain_irq+0x70/0xc0) [ 68.782506] r5:00000000 r4:c1fc0290 [ 68.786097] [<c04b9f44>] (__handle_domain_irq) from [<c040182c>] (gic_handle_irq+0x68/0xac) [ 68.794483] r9:fa213000 r8:fa21200c r7:d28a1d38 r6:c20cd210 r5:fa212000 r4:c2006a20 [ 68.802258] [<c04017c4>] (gic_handle_irq) from [<c0400bfc>] (__irq_svc+0x5c/0x7c) [ 68.809772] Exception stack(0xd28a1d38 to 0xd28a1d80) [ 68.814846] 1d20: 00000000 e714b004 [ 68.823057] 1d40: e8632de0 be974000 e714b000 40048000 e8632a90 40036000 e8632c98 e714b004 [ 68.831268] 1d60: e8632dd0 d28a1dc4 e8632a90 d28a1d88 40048000 c05cb290 90010013 ffffffff [ 68.839483] r9:d28a0000 r8:e8632c98 r7:d28a1d6c r6:ffffffff r5:90010013 r4:c05cb290 [ 68.847262] [<c05caf50>] (__do_munmap) from [<c05cb424>] (__vm_munmap+0x7c/0xc4) [ 68.854688] r10:e714b000 r9:00000000 r8:e714b040 r7:00012000 r6:d28a1ddc r5:40036000 [ 68.862547] r4:d28a0000 [ 68.865091] [<c05cb3a8>] (__vm_munmap) from [<c05cb488>] (vm_munmap+0x1c/0x20) [ 68.872347] r10:00000000 r9:e84289c0 r8:00032000 r7:00000802 r6:00000000 r5:40016000 [ 68.880209] r4:00020000 [ 68.882752] [<c05cb46c>] (vm_munmap) from [<c069e984>] (elf_map+0x94/0xf8) [ 68.889655] [<c069e8f0>] (elf_map) from [<c06a07f0>] (load_elf_binary+0x9e0/0x13f0) [ 68.897347] r8:d28a0000 r7:00000005 r6:00000000 r5:e72f60e0 r4:00000000 [ 68.904077] [<c069fe10>] (load_elf_binary) from [<c062e2c0>] (bprm_execve+0x324/0x6f0) [ 68.912026] r10:c207d280 r9:e87fc05c r8:fffffff8 r7:00000006 r6:c228de30 r5:c2082ac4 [ 68.919889] r4:e87fc000 [ 68.922432] [<c062df9c>] (bprm_execve) from [<c062e7e0>] (do_execveat_common+0x154/0x178) [ 68.930646] r10:0000000b r9:be97da44 r8:000383c8 r7:ffffff9c r6:e856b000 r5:e87fc000 [ 68.938508] r4:00000000 [ 68.941050] [<c062e68c>] (do_execveat_common) from [<c062f524>] (sys_execve+0x40/0x48) [ 68.949000] r9:d28a0000 r8:c0400364 r7:0000000b r6:be97da44 r5:be97da44 r4:000383c8 [ 68.956775] [<c062f4e4>] (sys_execve) from [<c04001a0>] (ret_fast_syscall+0x0/0x28) [ 68.964463] Exception stack(0xd28a1fa8 to 0xd28a1ff0) [ 68.969534] 1fa0: 00045320 000383c8 be97d760 000383c8 be97da44 65757274 [ 68.977749] 1fc0: 00045320 000383c8 be97da44 0000000b 00000005 0000009a be97d760 be97d834 [ 68.985961] 1fe0: be97d769 be97d75c b6ef5da0 b6ef56ac [ 68.991033] r5:000383c8 r4:00045320 [ 68.994621] BUG: Bad page state in process true pfn:a7176 [ 69.000131] page:70e75d1f refcount:0 mapcount:-1024 mapping:00000000 index:0x0 pfn:0xa7176 [ 69.008427] flags: 0x0() [ 69.010973] raw: 00000000 00000000 00000100 00000122 00000000 00000000 00000000 00000000 [ 69.019096] raw: fffffbff 00000000 00000000 00000000 [ 69.024079] page dumped because: nonzero mapcount [ 69.028798] Modules linked in: snd_soc_simple_card snd_soc_simple_card_utils snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore [ 69.042193] CPU: 0 PID: 670 Comm: true Tainted: G B 5.9.0-rc2-next-20200824 #1 [ 69.050752] Hardware name: Generic DRA74X (Flattened Device Tree) [ 69.056866] Backtrace: [ 69.059327] [<c040e860>] (dump_backtrace) from [<c040ebd4>] (show_stack+0x20/0x24) [ 69.066927] r7:c20ccad4 r6:00000000 r5:60010193 r4:c20ccad4 [ 69.072611] [<c040ebb4>] (show_stack) from [<c0940e58>] (dump_stack+0xec/0x118) [ 69.079956] [<c0940d6c>] (dump_stack) from [<c05db030>] (bad_page+0xf8/0x128) [ 69.087121] r10:00000002 r9:0030f231 r8:0000001a r7:c19eb22c r6:eeb53620 r5:0000001a [ 69.094985] r4:c2289b14 r3:4c6a9f02 [ 69.098577] [<c05daf38>] (bad_page) from [<c05db0ec>] (check_free_page_bad+0x8c/0x90) [ 69.106440] r7:efc2d130 r6:efc2d130 r5:0000001a r4:00000000 [ 69.112123] [<c05db060>] (check_free_page_bad) from [<c05dc41c>] (free_pcppages_bulk+0x1d4/0x778) [ 69.121030] r5:0000001a r4:efc2d13c [ 69.124621] [<c05dc248>] (free_pcppages_bulk) from [<c05dcb98>] (free_unref_page_commit+0xd4/0xf8) [ 69.133620] r10:efc29f7c r9:d28a1c10 r8:20010113 r7:eeb96168 r6:c21fd900 r5:efc2d13c [ 69.141481] r4:2dc68000 [ 69.144026] [<c05dcac4>] (free_unref_page_commit) from [<c05ddb80>] (free_unref_page+0x7c/0x9c) [ 69.152760] r7:00080000 r6:eeb96160 r5:20010113 r4:000a87b2 [ 69.158445] [<c05ddb04>] (free_unref_page) from [<c05ddbec>] (__free_pages+0x4c/0x58) [ 69.166307] r7:c220427c r6:e87b2014 r5:00000003 r4:00000000 [ 69.171990] [<c05ddba0>] (__free_pages) from [<c05ddcf4>] (free_pages.part.0+0x34/0x38) [ 69.180026] r5:00000003 r4:e87b2000 [ 69.183618] [<c05ddcc0>] (free_pages.part.0) from [<c05ddd18>] (free_pages+0x20/0x24) [ 69.191484] [<c05ddcf8>] (free_pages) from [<c05cdad8>] (tlb_remove_table_rcu+0x50/0x54) [ 69.199613] [<c05cda88>] (tlb_remove_table_rcu) from [<c04d31e4>] (rcu_core+0x26c/0xa9c) [ 69.207737] r7:c220427c r6:c2004f38 r5:e87b2000 r4:ffffe000 [ 69.213421] [<c04d2f78>] (rcu_core) from [<c04d3a2c>] (rcu_core_si+0x18/0x1c) [ 69.220586] r10:d28a0000 r9:00000200 r8:00000100 r7:c2203ee4 r6:00000009 r5:0000000a [ 69.228447] r4:c20030a4 [ 69.230992] [<c04d3a14>] (rcu_core_si) from [<c0401edc>] (__do_softirq+0x1ac/0x480) [ 69.238681] [<c0401d30>] (__do_softirq) from [<c0458e38>] (irq_exit+0xdc/0x104) [ 69.246024] r10:e8632dd0 r9:fa213000 r8:e98dc000 r7:00000000 r6:00000001 r5:00000000 [ 69.253884] r4:ffffe000 [ 69.256429] [<c0458d5c>] (irq_exit) from [<c04b9fb4>] (__handle_domain_irq+0x70/0xc0) [ 69.264290] r5:00000000 r4:c1fc0290 [ 69.267880] [<c04b9f44>] (__handle_domain_irq) from [<c040182c>] (gic_handle_irq+0x68/0xac) [ 69.276265] r9:fa213000 r8:fa21200c r7:d28a1d38 r6:c20cd210 r5:fa212000 r4:c2006a20 [ 69.284041] [<c04017c4>] (gic_handle_irq) from [<c0400bfc>] (__irq_svc+0x5c/0x7c) [ 69.291552] Exception stack(0xd28a1d38 to 0xd28a1d80) [ 69.296622] 1d20: 00000000 e714b004 [ 69.304837] 1d40: e8632de0 be974000 e714b000 40048000 e8632a90 40036000 e8632c98 e714b004 [ 69.313050] 1d60: e8632dd0 d28a1dc4 e8632a90 d28a1d88 40048000 c05cb290 90010013 ffffffff [ 69.321263] r9:d28a0000 r8:e8632c98 r7:d28a1d6c r6:ffffffff r5:90010013 r4:c05cb290 [ 69.329039] [<c05caf50>] (__do_munmap) from [<c05cb424>] (__vm_munmap+0x7c/0xc4) [ 69.336468] r10:e714b000 r9:00000000 r8:e714b040 r7:00012000 r6:d28a1ddc r5:40036000 [ 69.344331] r4:d28a0000 [ 69.346876] [<c05cb3a8>] (__vm_munmap) from [<c05cb488>] (vm_munmap+0x1c/0x20) [ 69.354130] r10:00000000 r9:e84289c0 r8:00032000 r7:00000802 r6:00000000 r5:40016000 [ 69.361992] r4:00020000 [ 69.364534] [<c05cb46c>] (vm_munmap) from [<c069e984>] (elf_map+0x94/0xf8) [ 69.371437] [<c069e8f0>] (elf_map) from [<c06a07f0>] (load_elf_binary+0x9e0/0x13f0) [ 69.379127] r8:d28a0000 r7:00000005 r6:00000000 r5:e72f60e0 r4:00000000 [ 69.385856] [<c069fe10>] (load_elf_binary) from [<c062e2c0>] (bprm_execve+0x324/0x6f0) [ 69.393806] r10:c207d280 r9:e87fc05c r8:fffffff8 r7:00000006 r6:c228de30 r5:c2082ac4 [ 69.401669] r4:e87fc000 [ 69.404211] [<c062df9c>] (bprm_execve) from [<c062e7e0>] (do_execveat_common+0x154/0x178) [ 69.412424] r10:0000000b r9:be97da44 r8:000383c8 r7:ffffff9c r6:e856b000 r5:e87fc000 [ 69.420286] r4:00000000 [ 69.422828] [<c062e68c>] (do_execveat_common) from [<c062f524>] (sys_execve+0x40/0x48) [ 69.430779] r9:d28a0000 r8:c0400364 r7:0000000b r6:be97da44 r5:be97da44 r4:000383c8 [ 69.438554] [<c062f4e4>] (sys_execve) from [<c04001a0>] (ret_fast_syscall+0x0/0x28) [ 69.446242] Exception stack(0xd28a1fa8 to 0xd28a1ff0) [ 69.451315] 1fa0: 00045320 000383c8 be97d760 000383c8 be97da44 65757274 [ 69.459526] 1fc0: 00045320 000383c8 be97da44 0000000b 00000005 0000009a be97d760 be97d834 [ 69.467737] 1fe0: be97d769 be97d75c b6ef5da0 b6ef56ac [ 69.472811] r5:000383c8 r4:00045320 [ 69.476401] BUG: Bad page state in process true pfn:a8fe9 [ 69.481907] page:2b6af1d0 refcount:0 mapcount:-1024 mapping:00000000 index:0x0 pfn:0xa8fe9 [ 69.490205] flags: 0x0() [ 69.492750] raw: 00000000 00000000 00000100 00000122 00000000 00000000 00000000 00000000 [ 69.500876] raw: fffffbff 00000000 00000000 00000000 [ 69.505859] page dumped because: nonzero mapcount [ 69.510577] Modules linked in: snd_soc_simple_card snd_soc_simple_card_utils snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore [ 69.523974] CPU: 0 PID: 670 Comm: true Tainted: G B 5.9.0-rc2-next-20200824 #1 [ 69.532533] Hardware name: Generic DRA74X (Flattened Device Tree) [ 69.538648] Backtrace: [ 69.541108] [<c040e860>] (dump_backtrace) from [<c040ebd4>] (show_stack+0x20/0x24) [ 69.548708] r7:c20ccad4 r6:00000000 r5:60010193 r4:c20ccad4 [ 69.554396] [<c040ebb4>] (show_stack) from [<c0940e58>] (dump_stack+0xec/0x118) [ 69.561738] [<c0940d6c>] (dump_stack) from [<c05db030>] (bad_page+0xf8/0x128) [ 69.568903] r10:00000004 r9:0030f231 r8:00000017 r7:c19eb22c r6:eebaebb0 r5:00000017 [ 69.576762] r4:c2289b14 r3:4c6a9f02 [ 69.580354] [<c05daf38>] (bad_page) from [<c05db0ec>] (check_free_page_bad+0x8c/0x90) [ 69.588215] r7:efc2d130 r6:efc2d130 r5:00000017 r4:00000000 [ 69.593900] [<c05db060>] (check_free_page_bad) from [<c05dc41c>] (free_pcppages_bulk+0x1d4/0x778) [ 69.602810] r5:00000017 r4:efc2d13c [ 69.606402] [<c05dc248>] (free_pcppages_bulk) from [<c05dcb98>] (free_unref_page_commit+0xd4/0xf8) [ 69.615398] r10:efc29f7c r9:d28a1c10 r8:20010113 r7:eeb96168 r6:c21fd900 r5:efc2d13c [ 69.623259] r4:2dc68000 [ 69.625805] [<c05dcac4>] (free_unref_page_commit) from [<c05ddb80>] (free_unref_page+0x7c/0x9c) [ 69.634538] r7:00080000 r6:eeb96160 r5:20010113 r4:000a87b2 [ 69.640223] [<c05ddb04>] (free_unref_page) from [<c05ddbec>] (__free_pages+0x4c/0x58) [ 69.648084] r7:c220427c r6:e87b2014 r5:00000003 r4:00000000 [ 69.653767] [<c05ddba0>] (__free_pages) from [<c05ddcf4>] (free_pages.part.0+0x34/0x38) [ 69.661803] r5:00000003 r4:e87b2000 [ 69.665395] [<c05ddcc0>] (free_pages.part.0) from [<c05ddd18>] (free_pages+0x20/0x24) [ 69.673260] [<c05ddcf8>] (free_pages) from [<c05cdad8>] (tlb_remove_table_rcu+0x50/0x54) [ 69.681388] [<c05cda88>] (tlb_remove_table_rcu) from [<c04d31e4>] (rcu_core+0x26c/0xa9c) [ 69.689510] r7:c220427c r6:c2004f38 r5:e87b2000 r4:ffffe000 [ 69.695196] [<c04d2f78>] (rcu_core) from [<c04d3a2c>] (rcu_core_si+0x18/0x1c) [ 69.702362] r10:d28a0000 r9:00000200 r8:00000100 r7:c2203ee4 r6:00000009 r5:0000000a [ 69.710224] r4:c20030a4 [ 69.712768] [<c04d3a14>] (rcu_core_si) from [<c0401edc>] (__do_softirq+0x1ac/0x480) [ 69.720461] [<c0401d30>] (__do_softirq) from [<c0458e38>] (irq_exit+0xdc/0x104) [ 69.727800] r10:e8632dd0 r9:fa213000 r8:e98dc000 r7:00000000 r6:00000001 r5:00000000 [ 69.735663] r4:ffffe000 [ 69.738209] [<c0458d5c>] (irq_exit) from [<c04b9fb4>] (__handle_domain_irq+0x70/0xc0) [ 69.746069] r5:00000000 r4:c1fc0290 [ 69.749658] [<c04b9f44>] (__handle_domain_irq) from [<c040182c>] (gic_handle_irq+0x68/0xac) [ 69.758043] r9:fa213000 r8:fa21200c r7:d28a1d38 r6:c20cd210 r5:fa212000 r4:c2006a20 [ 69.765820] [<c04017c4>] (gic_handle_irq) from [<c0400bfc>] (__irq_svc+0x5c/0x7c) [ 69.773332] Exception stack(0xd28a1d38 to 0xd28a1d80) [ 69.778404] 1d20: 00000000 e714b004 [ 69.786618] 1d40: e8632de0 be974000 e714b000 40048000 e8632a90 40036000 e8632c98 e714b004 [ 69.794831] 1d60: e8632dd0 d28a1dc4 e8632a90 d28a1d88 40048000 c05cb290 90010013 ffffffff [ 69.803042] r9:d28a0000 r8:e8632c98 r7:d28a1d6c r6:ffffffff r5:90010013 r4:c05cb290 [ 69.810821] [<c05caf50>] (__do_munmap) from [<c05cb424>] (__vm_munmap+0x7c/0xc4) [ 69.818250] r10:e714b000 r9:00000000 r8:e714b040 r7:00012000 r6:d28a1ddc r5:40036000 [ 69.826113] r4:d28a0000 [ 69.828657] [<c05cb3a8>] (__vm_munmap) from [<c05cb488>] (vm_munmap+0x1c/0x20) [ 69.835912] r10:00000000 r9:e84289c0 r8:00032000 r7:00000802 r6:00000000 r5:40016000 [ 69.843774] r4:00020000 [ 69.846317] [<c05cb46c>] (vm_munmap) from [<c069e984>] (elf_map+0x94/0xf8) [ 69.853220] [<c069e8f0>] (elf_map) from [<c06a07f0>] (load_elf_binary+0x9e0/0x13f0) [ 69.860909] r8:d28a0000 r7:00000005 r6:00000000 r5:e72f60e0 r4:00000000 [ 69.867637] [<c069fe10>] (load_elf_binary) from [<c062e2c0>] (bprm_execve+0x324/0x6f0) [ 69.875590] r10:c207d280 r9:e87fc05c r8:fffffff8 r7:00000006 r6:c228de30 r5:c2082ac4 [ 69.883450] r4:e87fc000 [ 69.885992] [<c062df9c>] (bprm_execve) from [<c062e7e0>] (do_execveat_common+0x154/0x178) [ 69.894207] r10:0000000b r9:be97da44 r8:000383c8 r7:ffffff9c r6:e856b000 r5:e87fc000 [ 69.902069] r4:00000000 [ 69.904612] [<c062e68c>] (do_execveat_common) from [<c062f524>] (sys_execve+0x40/0x48) [ 69.912561] r9:d28a0000 r8:c0400364 r7:0000000b r6:be97da44 r5:be97da44 r4:000383c8 [ 69.920337] [<c062f4e4>] (sys_execve) from [<c04001a0>] (ret_fast_syscall+0x0/0x28) [ 69.928027] Exception stack(0xd28a1fa8 to 0xd28a1ff0) [ 69.933100] 1fa0: 00045320 000383c8 be97d760 000383c8 be97da44 65757274 [ 69.941311] 1fc0: 00045320 000383c8 be97da44 0000000b 00000005 0000009a be97d760 be97d834 [ 69.949524] 1fe0: be97d769 be97d75c b6ef5da0 b6ef56ac [ 69.954597] r5:000383c8 r4:00045320 [ 69.958184] BUG: Bad page state in process true pfn:a72bb [ 69.963691] page:035a253e refcount:0 mapcount:-1024 mapping:00000000 index:0x0 pfn:0xa72bb [ 69.971987] flags: 0x0() [ 69.974532] raw: 00000000 00000000 00000100 00000122 00000000 00000000 00000000 00000000 [ 69.982658] raw: fffffbff 00000000 00000000 00000000 [ 69.987641] page dumped because: nonzero mapcount [ 69.992359] Modules linked in: snd_soc_simple_card snd_soc_simple_card_utils snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore [ 70.005752] CPU: 0 PID: 670 Comm: true Tainted: G B 5.9.0-rc2-next-20200824 #1 Fulll test log, https://lkft.validation.linaro.org/scheduler/job/1701626#L2841 https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20200824/testrun/3109125/suite/linux-log-parser/test/check-kernel-bug-1701604/log https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20200824/testrun/3110121/suite/linux-log-parser/test/check-kernel-bug-1701607/log -- Linaro LKFT https://lkft.linaro.org
