ci2 starts bisection 2025-11-15 17:52:21.76390686 +0000 UTC m=+106274.432606449
bisecting fixing commit since 882efbdd9d34ebaf03da2dd0246f07f251b0aed2
building syzkaller on ff1712fe925b6acf5dec3cd7616cf03effc97f62
ensuring issue is reproducible on original commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2

testing commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2 gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: 4abc6ac8e9cb2d3fefdf54d9705d1a1fb7911a29408762b11a93a7be9babf72c
run #0: infra problem: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc00419c1e0 0xc00419c320 0xc00419c410] Location: Message:The zone 'projects/syzkaller/zones/us-central1-a' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}
run #1: infra problem: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc0045b2820 0xc0045b2910 0xc0045b29b0] Location: Message:The zone 'projects/syzkaller/zones/us-central1-a' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}
run #2: infra problem: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc002d94910 0xc002d94a00 0xc002d94aa0] Location: Message:The zone 'projects/syzkaller/zones/us-central1-a' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}
run #3: infra problem: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc0045b34f0 0xc0045b35e0 0xc0045b3680] Location: Message:The zone 'projects/syzkaller/zones/us-central1-a' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}
run #4: crashed: WARNING in ext4_update_dx_flag
run #5: crashed: WARNING in ext4_update_dx_flag
run #6: crashed: WARNING in ext4_update_dx_flag
run #7: crashed: WARNING in ext4_update_dx_flag
run #8: crashed: WARNING in ext4_update_dx_flag
run #9: crashed: WARNING in ext4_update_dx_flag
run #10: crashed: WARNING in ext4_update_dx_flag
run #11: crashed: WARNING in ext4_update_dx_flag
run #12: crashed: WARNING in ext4_update_dx_flag
run #13: crashed: WARNING in ext4_update_dx_flag
run #14: crashed: WARNING in ext4_update_dx_flag
run #15: crashed: WARNING in ext4_update_dx_flag
run #16: crashed: WARNING in ext4_update_dx_flag
run #17: crashed: WARNING in ext4_update_dx_flag
run #18: crashed: WARNING in ext4_update_dx_flag
run #19: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2 gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: af1c230746c7c36bf5890fad017ca9a1c016528dd790b0d829c1e249c5c45a52
all runs: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
the bug reproduces without the instrumentation
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
kconfig minimization: base=7505 full=9787 leaves diff=2009
split chunks (needed=false): <2009>
split chunk #0 of len 2009 into 5 parts
testing without sub-chunk 1/5
disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed
testing commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2 gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: 17b594a54581f0b0f3667831d9269496aeb43419305eb1acd09e687ca19c2378
all runs: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2 gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: 6504fde6a6319559bb2b98cc1f6147e0611bb5bb5e6944b3021f930ae27a3407
all runs: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [locking atomic_sleep hang memleak ubsan kasan], they are not needed
testing commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2 gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: 5c4412bd33b4d96814cbf8c5c4d08e6aa3e03a09beff9f549182dac860552a18
all runs: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2 gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: 2a8eabdcad08baab92c0371832ce9c0a53608587420eabe0bb94c3d9ddedd8ee
all runs: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 882efbdd9d34ebaf03da2dd0246f07f251b0aed2 gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: 5666dee2da00afe872470247678d79f243e1947991c4d3cd2fb0882b67f91fc2
all runs: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
the chunk can be dropped
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing current HEAD f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe
testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
kernel signature: 4d4c7fbb9044a70004c275c76ddd9e9013590c3017bad111ffcee2a0772d5f0f
all runs: crashed: WARNING in ext4_update_dx_flag
representative crash: WARNING in ext4_update_dx_flag, types: [WARNING]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h11m2.914702339s (build: 1h18m38.442243069s, test: 47m24.727008085s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1.158
crash: WARNING in ext4_update_dx_flag
EXT4-fs (loop2): This should not happen!! Data will be lost
EXT4-fs warning (device loop2): ext4_dirblock_csum_set:427: inode #2: comm syz.2.17: No space for directory leaf checksum. Please run e2fsck -D.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2975 at fs/ext4/ext4.h:2837 ext4_update_dx_flag+0x40/0x70 fs/ext4/ext4.h:2840
Modules linked in:
CPU: 0 PID: 2975 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ext4_update_dx_flag+0x40/0x70 fs/ext4/ext4.h:2840
lr : ext4_rename fs/ext4/namei.c:4010 [inline]
lr : ext4_rename2+0xa2c/0xc38 fs/ext4/namei.c:4258
sp : ffff800011aa3ad0
x29: ffff800011aa3bb0 x28: 0000000000000000 x27: ffff800011aa3d30
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000001
x23: 0000000000000000 x22: 0000000000000001 x21: ffff0000c9ac6160
x20: 0000000000000001 x19: 0000000000000000 x18: ffff80000a40d9ed
x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003
x14: 0000000000000001 x13: 0000000000000001 x12: 000000006918dc36
x11: 000000037fffffff x10: 000000000008d200 x9 : 00000000000000ff
x8 : ffff0000c9ac5f00 x7 : 0000000000000000 x6 : ffff800008332f48
x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000002
x2 : 0000000000000000 x1 : 0000000001312d00 x0 : ffff0000c9ac6160
Call trace:
 ext4_update_dx_flag+0x40/0x70 fs/ext4/ext4.h:2840
 vfs_rename+0x480/0x52c fs/namei.c:4882
 do_renameat2+0x340/0x5a8 fs/namei.c:5035
 __do_sys_renameat2 fs/namei.c:5068 [inline]
 __se_sys_renameat2 fs/namei.c:5065 [inline]
 __arm64_sys_renameat2+0x68/0x84 fs/namei.c:5065
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x40/0x104 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0xb0/0xec arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x24/0x8c arch/arm64/kernel/syscall.c:204
 el0_svc+0x34/0xe4 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
---[ end trace 0000000000000000 ]---