ci2 starts bisection 2023-10-19 18:48:10.102588907 +0000 UTC m=+31074.257172227
bisecting fixing commit since 471e639e59d128f4bf58000a118b2ceca3893f98
building syzkaller on f3921d4d63f97d1f1fb49a69ea85744bb7ef184b
ensuring issue is reproducible on original commit 471e639e59d128f4bf58000a118b2ceca3893f98

testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a06f2610ed76764b012f3f84248cbb08e5df1cca98677d4c318fb1268828fb63
run #0: crashed: general protection fault in create_empty_buffers
run #1: crashed: general protection fault in create_empty_buffers
run #2: OK
run #3: crashed: general protection fault in create_empty_buffers
run #4: crashed: general protection fault in create_empty_buffers
run #5: OK
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
representative crash: general protection fault in create_empty_buffers, types: [UNKNOWN]
check whether we can drop unnecessary instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bfa12cd465c8712113aaf5293005671d7f51fc1479d8fc824adb972c498a561f
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
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
representative crash: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers, types: [UNKNOWN]
the bug reproduces without the instrumentation
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
kconfig minimization: base=3703 full=7270 leaves diff=1987
split chunks (needed=false): <1987>
split chunk #0 of len 1987 into 5 parts
testing without sub-chunk 1/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 277be90e68044996e9e0681356cab9fc544c2967c3ba5fe4193601f9604cd488
run #0: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc001af8d20 0xc001af8e10 0xc001af8eb0] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc0020aa0a0 0xc0020aa280 0xc0020aa320] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc003bb0820 0xc003bb0910 0xc003bb09b0] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc0020aa870 0xc0020aa960 0xc0020aaa00] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #4: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc003b640f0 0xc003b641e0 0xc003b64280] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #5: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc003bb0d70 0xc003bb0e60 0xc003bb0f00] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in nilfs_segctor_do_construct
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #10: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #11: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #17: OK
run #18: OK
run #19: OK
representative crash: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers, types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c4426fd591a4dee5d32068a7047f14025cbf9215f98b0229bacb26e4c52fad0f
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
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: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
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
representative crash: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers, types: [UNKNOWN]
testing without sub-chunk 3/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 8e6d06653490e39010be59d87e8038b75a4df3926b7fc42749f95c529122630e
all runs: OK
false negative chance: 0.012
testing without sub-chunk 4/5
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a0b8186464760b9137451d01d2d83d53b0f628c7706e2a82c2719660bc20b917
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #3: OK
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers
run #5: OK
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
representative crash: BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers, types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5c79aedcb1cfaf3e0f1e256d15b751037dfc2fc31480ddf3b6ca45539c70bb68
run #0: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-1967375988759995650') ForceSendFields:[] NullFields:[]}.
run #1: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-3163812434276771497') ForceSendFields:[] NullFields:[]}.
run #2: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-1867768856324247043') ForceSendFields:[] NullFields:[]}.
run #3: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '645721688634234142') ForceSendFields:[] NullFields:[]}.
run #4: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-2992588917383489726') ForceSendFields:[] NullFields:[]}.
run #5: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '3716228534689764084') ForceSendFields:[] NullFields:[]}.
run #6: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '6321996166121136463') ForceSendFields:[] NullFields:[]}.
run #7: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-9133530192291257294') ForceSendFields:[] NullFields:[]}.
run #8: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '7212735320270626228') ForceSendFields:[] NullFields:[]}.
run #9: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-2050448774940046434') ForceSendFields:[] NullFields:[]}.
run #10: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-476315437215661044') ForceSendFields:[] NullFields:[]}.
run #11: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '2490415610235974260') ForceSendFields:[] NullFields:[]}.
run #12: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '3032839950212193624') ForceSendFields:[] NullFields:[]}.
run #13: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-90915959942103268') ForceSendFields:[] NullFields:[]}.
run #14: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '9013511903260658577') ForceSendFields:[] NullFields:[]}.
run #15: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-4964755222799547798') ForceSendFields:[] NullFields:[]}.
run #16: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-6839509345777726790') ForceSendFields:[] NullFields:[]}.
run #17: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '7712649190423749364') ForceSendFields:[] NullFields:[]}.
run #18: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '-913680524865976930') ForceSendFields:[] NullFields:[]}.
run #19: infra problem: create image operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '9142169040423422237') ForceSendFields:[] NullFields:[]}.
reproducer is flaky (0.20 repro chance estimate)
revisions tested: 7, total time: 2h33m38.0577322s (build: 21m10.898006231s, test: 2h10m57.150177511s)
error: config minimization failed: unable to determine the verdict because of infra errors