bisecting fixing commit since abf02e2964b3aaf1d5197c5d7c671e771b0e109e
building syzkaller on 34bf9440bd06034f86b5d9ac8afbf078129cbdae
testing commit abf02e2964b3aaf1d5197c5d7c671e771b0e109e with gcc (GCC) 8.1.0
kernel signature: 143fef21dc8848b2276d41f39cea7fe24797ffa5b4905f9da66ffa8788491d87
run #0: crashed: possible deadlock in pty_write
run #1: crashed: possible deadlock in pty_write
run #2: crashed: possible deadlock in pty_write
run #3: crashed: possible deadlock in console_unlock
run #4: crashed: possible deadlock in console_unlock
run #5: crashed: possible deadlock in console_unlock
run #6: crashed: possible deadlock in pty_write
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in console_unlock
run #9: OK
testing current HEAD 13cb73490f475f8e7669f9288be0bcfa85399b1f
testing commit 13cb73490f475f8e7669f9288be0bcfa85399b1f with gcc (GCC) 8.1.0
kernel signature: d96d1c9d09e1a4f4ae64f142b09b654bb575e923ea96a6e56104ba75c0d1ca22
all runs: OK
# git bisect start 13cb73490f475f8e7669f9288be0bcfa85399b1f abf02e2964b3aaf1d5197c5d7c671e771b0e109e
Bisecting: 55164 revisions left to test after this (roughly 16 steps)
[d65d87a07476aa17df2dcb3ad18c22c154315bec] ext4: improve explanation of a mount failure caused by a misconfigured kernel
testing commit d65d87a07476aa17df2dcb3ad18c22c154315bec with gcc (GCC) 8.1.0
kernel signature: e6deb1796014f3d8c7e8957082b5b2af0d60cbd06a18bff590b35ee8c6e6e0ac
run #0: crashed: possible deadlock in pty_write
run #1: crashed: possible deadlock in pty_write
run #2: crashed: possible deadlock in pty_write
run #3: crashed: possible deadlock in console_unlock
run #4: crashed: possible deadlock in pty_write
run #5: crashed: possible deadlock in pty_write
run #6: crashed: possible deadlock in pty_write
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in console_unlock
run #9: OK
# git bisect good d65d87a07476aa17df2dcb3ad18c22c154315bec
Bisecting: 26913 revisions left to test after this (roughly 15 steps)
[cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
testing commit cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2 with gcc (GCC) 8.1.0
kernel signature: 8f1d251c8be444243b7963c8472a13bb2aedfe8d2e0241f6c659f762ce0f36fc
run #0: crashed: possible deadlock in pty_write
run #1: crashed: possible deadlock in pty_write
run #2: crashed: possible deadlock in pty_write
run #3: crashed: possible deadlock in pty_write
run #4: crashed: possible deadlock in console_unlock
run #5: crashed: possible deadlock in pty_write
run #6: crashed: possible deadlock in pty_write
run #7: crashed: possible deadlock in pty_write
run #8: crashed: possible deadlock in pty_write
run #9: crashed: possible deadlock in console_unlock
# git bisect good cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2
Bisecting: 13466 revisions left to test after this (roughly 14 steps)
[4834ce9d8e074bb7ae197632e0708219b9f389b5] Merge tag 'linux-kselftest-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
testing commit 4834ce9d8e074bb7ae197632e0708219b9f389b5 with gcc (GCC) 8.1.0
kernel signature: f3d6bff0646a06a7888779f88da79bb9562eee5a71642372d0a6a9b94575e406
all runs: OK
# git bisect bad 4834ce9d8e074bb7ae197632e0708219b9f389b5
Bisecting: 6703 revisions left to test after this (roughly 13 steps)
[09102704c67457c6cdea6c0394c34843484a852c] Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
testing commit 09102704c67457c6cdea6c0394c34843484a852c with gcc (GCC) 8.1.0
kernel signature: e0641ed0c9077c30d81f0fd05fbf7b5d7f68009ca52f3897f67c506ef3a938ea
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 09102704c67457c6cdea6c0394c34843484a852c
Bisecting: 6703 revisions left to test after this (roughly 13 steps)
[32ed5880aef521f7189b10eae7370ebdc55a0fbd] Merge tag 'omap-for-v5.9/ti-sysc-drop-pdata-take2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/dt
testing commit 32ed5880aef521f7189b10eae7370ebdc55a0fbd with gcc (GCC) 8.1.0
kernel signature: 3d1d14f486a2c5dc78822d2d649407edf4f1c8b9697d2f1e5977917272b22612
run #0: crashed: possible deadlock in pty_write
run #1: crashed: possible deadlock in pty_write
run #2: crashed: possible deadlock in pty_write
run #3: crashed: possible deadlock in console_unlock
run #4: crashed: possible deadlock in pty_write
run #5: crashed: possible deadlock in console_unlock
run #6: crashed: possible deadlock in pty_write
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in console_unlock
run #9: OK
# git bisect good 32ed5880aef521f7189b10eae7370ebdc55a0fbd
Bisecting: 2612 revisions left to test after this (roughly 11 steps)
[99f6cf61f175c1239ed8e86d4a1757c380da52d1] Merge branch 'mtd/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
testing commit 99f6cf61f175c1239ed8e86d4a1757c380da52d1 with gcc (GCC) 8.1.0
kernel signature: 8fafeb33716840c9d3906c6742e7d382b130e7840917c17b0e4a46fd7597e893
all runs: OK
# git bisect bad 99f6cf61f175c1239ed8e86d4a1757c380da52d1
Bisecting: 1257 revisions left to test after this (roughly 10 steps)
[49decddd39e5f6132ccd7d9fdc3d7c470b0061bb] Merge tag 'inclusive-terminology' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/linux
testing commit 49decddd39e5f6132ccd7d9fdc3d7c470b0061bb with gcc (GCC) 8.1.0
kernel signature: 7cf7f255e85f8d5189f0f9886a8140a9c27c06dc43aa8c58d932b968f3c7286e
all runs: OK
# git bisect bad 49decddd39e5f6132ccd7d9fdc3d7c470b0061bb
Bisecting: 628 revisions left to test after this (roughly 9 steps)
[e44b59cd758acdd413512d4597a1fabdadfe3abf] Merge tag 'arm-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
testing commit e44b59cd758acdd413512d4597a1fabdadfe3abf with gcc (GCC) 8.1.0
kernel signature: f1bd55dde8cf942b639fe5837f7ffb4cd26dc9058960747a2407489605d8dc40
all runs: OK
# git bisect bad e44b59cd758acdd413512d4597a1fabdadfe3abf
Bisecting: 312 revisions left to test after this (roughly 8 steps)
[4a21185cda0fbb860580eeeb4f1a70a9cda332a4] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
testing commit 4a21185cda0fbb860580eeeb4f1a70a9cda332a4 with gcc (GCC) 8.1.0
kernel signature: bd8955653fb81f051802c2908a31e2ae48d3bbf4043120e1ec31868ad5aef10f
run #0: crashed: possible deadlock in console_unlock
run #1: crashed: possible deadlock in pty_write
run #2: crashed: possible deadlock in pty_write
run #3: crashed: possible deadlock in console_unlock
run #4: crashed: possible deadlock in pty_write
run #5: crashed: possible deadlock in console_unlock
run #6: crashed: possible deadlock in console_unlock
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in console_unlock
run #9: crashed: possible deadlock in console_unlock
# git bisect good 4a21185cda0fbb860580eeeb4f1a70a9cda332a4
Bisecting: 154 revisions left to test after this (roughly 7 steps)
[f05baa066d0f6a38f0624c28008fb2f53cd00e17] Merge tag 'dma-mapping-5.8-4' of git://git.infradead.org/users/hch/dma-mapping
testing commit f05baa066d0f6a38f0624c28008fb2f53cd00e17 with gcc (GCC) 8.1.0
kernel signature: dfb63b3a54df5e6ff06aafe68ffef634099ab2890bfd69dc840a5915fc8aca36
run #0: crashed: possible deadlock in pty_write
run #1: crashed: possible deadlock in console_unlock
run #2: crashed: possible deadlock in console_unlock
run #3: crashed: possible deadlock in pty_write
run #4: crashed: possible deadlock in console_unlock
run #5: crashed: possible deadlock in console_unlock
run #6: crashed: possible deadlock in pty_write
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in console_unlock
run #9: crashed: possible deadlock in console_unlock
# git bisect good f05baa066d0f6a38f0624c28008fb2f53cd00e17
Bisecting: 81 revisions left to test after this (roughly 6 steps)
[719fdd32921fb7e3208db8832d32ae1c2d68900f] afs: Fix storage of cell names
testing commit 719fdd32921fb7e3208db8832d32ae1c2d68900f with gcc (GCC) 8.1.0
kernel signature: c62fcf4704153219a2db3ee0a4f2a97dbc938f7c737f25a7689d667c2d4183dd
run #0: crashed: possible deadlock in pty_write
run #1: crashed: possible deadlock in console_unlock
run #2: crashed: possible deadlock in pty_write
run #3: crashed: possible deadlock in pty_write
run #4: crashed: possible deadlock in console_unlock
run #5: crashed: possible deadlock in console_unlock
run #6: crashed: possible deadlock in pty_write
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in console_unlock
run #9: crashed: possible deadlock in console_unlock
# git bisect good 719fdd32921fb7e3208db8832d32ae1c2d68900f
Bisecting: 42 revisions left to test after this (roughly 5 steps)
[91a9a90d040e8b9ff63d48ea71468e0f4db764ff] Merge tag 'sched_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
testing commit 91a9a90d040e8b9ff63d48ea71468e0f4db764ff with gcc (GCC) 8.1.0
kernel signature: 676840ede9a5dc4f9d49cd28573bc5c9fb73f30bf6bf7ed53941743e13369eb9
all runs: OK
# git bisect bad 91a9a90d040e8b9ff63d48ea71468e0f4db764ff
Bisecting: 18 revisions left to test after this (roughly 4 steps)
[7ecb59a56666506ebb1197f89ca7d587bd83309e] Merge tag 'objtool_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
testing commit 7ecb59a56666506ebb1197f89ca7d587bd83309e with gcc (GCC) 8.1.0
kernel signature: 88f4db548206418558ba7610600e81465fee7d2d084c6c17aa13f7fcc7ae6e62
all runs: OK
# git bisect bad 7ecb59a56666506ebb1197f89ca7d587bd83309e
Bisecting: 9 revisions left to test after this (roughly 3 steps)
[acf7b0bf7dcf5a96d9b44a0997227c7210d995c1] kasan: Fix required compiler version
testing commit acf7b0bf7dcf5a96d9b44a0997227c7210d995c1 with gcc (GCC) 8.1.0
kernel signature: f24c65466fd5101c6edd257bb90403cd6642397394ae241ebb51848a533eb949
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip acf7b0bf7dcf5a96d9b44a0997227c7210d995c1
Bisecting: 9 revisions left to test after this (roughly 3 steps)
[0f1441b44e823a74f3f3780902a113e07c73fbf6] objtool: Fix noinstr vs KCOV
testing commit 0f1441b44e823a74f3f3780902a113e07c73fbf6 with gcc (GCC) 8.1.0
kernel signature: e6ccdec40c4f73125ce84b3721562c143feb1e8fab5c9bb33db7819cdc96d9c6
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 0f1441b44e823a74f3f3780902a113e07c73fbf6
Bisecting: 9 revisions left to test after this (roughly 3 steps)
[734d099ba644f5a92c70efa3d54d0ba2500ce162] objtool: Don't consider vmlinux a C-file
testing commit 734d099ba644f5a92c70efa3d54d0ba2500ce162 with gcc (GCC) 8.1.0
kernel signature: f24c65466fd5101c6edd257bb90403cd6642397394ae241ebb51848a533eb949
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 734d099ba644f5a92c70efa3d54d0ba2500ce162
Bisecting: 9 revisions left to test after this (roughly 3 steps)
[a358505d8af3ab43763e1b49549619528783d2bf] Merge tag 'x86_entry_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
testing commit a358505d8af3ab43763e1b49549619528783d2bf with gcc (GCC) 8.1.0
kernel signature: 88f4db548206418558ba7610600e81465fee7d2d084c6c17aa13f7fcc7ae6e62
all runs: OK
# git bisect bad a358505d8af3ab43763e1b49549619528783d2bf
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[8e8bb06d199a5aa7a534aa3b3fc0abbbc11ca438] x86/entry, bug: Comment the instrumentation_begin() usage for WARN()
testing commit 8e8bb06d199a5aa7a534aa3b3fc0abbbc11ca438 with gcc (GCC) 8.1.0
./arch/x86/include/asm/cpumask.h:19:29: error: inlining failed in call to always_inline 'arch_cpu_online': function attribute mismatch
./arch/x86/include/asm/irq_stack.h:40:29: error: inlining failed in call to always_inline 'run_on_irqstack_cond': function attribute mismatch
./arch/x86/include/asm/idtentry.h:65:29: error: inlining failed in call to always_inline '__exc_divide_error': function attribute mismatch
./arch/x86/include/asm/idtentry.h:213:29: error: inlining failed in call to always_inline '__common_interrupt': function attribute mismatch
./arch/x86/include/asm/kvm_para.h:99:29: error: inlining failed in call to always_inline 'kvm_handle_async_pf': function attribute mismatch
./arch/x86/include/asm/processor.h:826:29: error: inlining failed in call to always_inline 'prefetchw': function attribute mismatch
./arch/x86/include/asm/current.h:13:44: error: inlining failed in call to always_inline 'get_current': function attribute mismatch
arch/x86/mm/fault.c:1353:1: error: inlining failed in call to always_inline 'handle_page_fault': function attribute mismatch
kernel/locking/lockdep.c:396:29: error: inlining failed in call to always_inline 'lockdep_recursion_finish': function attribute mismatch
kernel/locking/lockdep.c:4725:5: error: inlining failed in call to always_inline '__lock_is_held': function attribute mismatch
./include/linux/debug_locks.h:15:28: error: inlining failed in call to always_inline '__debug_locks_off': function attribute mismatch
# git bisect skip 8e8bb06d199a5aa7a534aa3b3fc0abbbc11ca438
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[5ddbc4082e1072eeeae52ff561a88620a05be08f] x86, kcsan: Add __no_kcsan to noinstr
testing commit 5ddbc4082e1072eeeae52ff561a88620a05be08f with gcc (GCC) 8.1.0
kernel signature: e6ccdec40c4f73125ce84b3721562c143feb1e8fab5c9bb33db7819cdc96d9c6
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 5ddbc4082e1072eeeae52ff561a88620a05be08f
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[33aea07f30c261eff7ba229f19fd1b161e0fb851] compiler_attributes.h: Support no_sanitize_undefined check with GCC 4
testing commit 33aea07f30c261eff7ba229f19fd1b161e0fb851 with gcc (GCC) 8.1.0
./arch/x86/include/asm/cpumask.h:19:29: error: inlining failed in call to always_inline 'arch_cpu_online': function attribute mismatch
./arch/x86/include/asm/irq_stack.h:40:29: error: inlining failed in call to always_inline 'run_on_irqstack_cond': function attribute mismatch
./arch/x86/include/asm/kvm_para.h:99:29: error: inlining failed in call to always_inline 'kvm_handle_async_pf': function attribute mismatch
./arch/x86/include/asm/processor.h:826:29: error: inlining failed in call to always_inline 'prefetchw': function attribute mismatch
./arch/x86/include/asm/current.h:13:44: error: inlining failed in call to always_inline 'get_current': function attribute mismatch
arch/x86/mm/fault.c:1353:1: error: inlining failed in call to always_inline 'handle_page_fault': function attribute mismatch
./arch/x86/include/asm/idtentry.h:65:29: error: inlining failed in call to always_inline '__exc_divide_error': function attribute mismatch
kernel/locking/lockdep.c:396:29: error: inlining failed in call to always_inline 'lockdep_recursion_finish': function attribute mismatch
kernel/locking/lockdep.c:4725:5: error: inlining failed in call to always_inline '__lock_is_held': function attribute mismatch
./include/linux/debug_locks.h:15:28: error: inlining failed in call to always_inline '__debug_locks_off': function attribute mismatch
# git bisect skip 33aea07f30c261eff7ba229f19fd1b161e0fb851
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[c7aadc09321d8f9a1d3bd1e6d8a47222ecddf6c5] x86/entry: Increase entry_stack size to a full page
testing commit c7aadc09321d8f9a1d3bd1e6d8a47222ecddf6c5 with gcc (GCC) 8.1.0
kernel signature: 199ea4fa6d082e7fa24685e9de84dd5cd4ced50d8ef1feecd2d454ae4fab43ef
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip c7aadc09321d8f9a1d3bd1e6d8a47222ecddf6c5
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[6b643a07a7e41f9e11cfbb9bba4c5c9791ac2997] x86/entry, ubsan, objtool: Whitelist __ubsan_handle_*()
testing commit 6b643a07a7e41f9e11cfbb9bba4c5c9791ac2997 with gcc (GCC) 8.1.0
./arch/x86/include/asm/cpumask.h:19:29: error: inlining failed in call to always_inline 'arch_cpu_online': function attribute mismatch
./arch/x86/include/asm/irq_stack.h:40:29: error: inlining failed in call to always_inline 'run_on_irqstack_cond': function attribute mismatch
./arch/x86/include/asm/kvm_para.h:99:29: error: inlining failed in call to always_inline 'kvm_handle_async_pf': function attribute mismatch
./arch/x86/include/asm/processor.h:826:29: error: inlining failed in call to always_inline 'prefetchw': function attribute mismatch
./arch/x86/include/asm/current.h:13:44: error: inlining failed in call to always_inline 'get_current': function attribute mismatch
arch/x86/mm/fault.c:1353:1: error: inlining failed in call to always_inline 'handle_page_fault': function attribute mismatch
kernel/locking/lockdep.c:396:29: error: inlining failed in call to always_inline 'lockdep_recursion_finish': function attribute mismatch
kernel/locking/lockdep.c:4725:5: error: inlining failed in call to always_inline '__lock_is_held': function attribute mismatch
# git bisect skip 6b643a07a7e41f9e11cfbb9bba4c5c9791ac2997
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[e3a9e681adb779b39565a28b3252c3be1033f994] x86/entry: Fixup bad_iret vs noinstr
testing commit e3a9e681adb779b39565a28b3252c3be1033f994 with gcc (GCC) 8.1.0
kernel signature: 68959d37d5d652fed8f35ca50515131b55ff320e1408a4f2f62441d492076f53
run #0: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #1: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #2: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #3: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #4: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #5: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #6: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #7: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #8: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #9: boot failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip e3a9e681adb779b39565a28b3252c3be1033f994
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[14d3b376b6c3f66d62559d457d32edf565472163] x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline()
testing commit 14d3b376b6c3f66d62559d457d32edf565472163 with gcc (GCC) 8.1.0
./arch/x86/include/asm/cpumask.h:19:29: error: inlining failed in call to always_inline 'arch_cpu_online': function attribute mismatch
./arch/x86/include/asm/idtentry.h:65:29: error: inlining failed in call to always_inline '__exc_divide_error': function attribute mismatch
./arch/x86/include/asm/irq_stack.h:40:29: error: inlining failed in call to always_inline 'run_on_irqstack_cond': function attribute mismatch
./arch/x86/include/asm/idtentry.h:213:29: error: inlining failed in call to always_inline '__common_interrupt': function attribute mismatch
./arch/x86/include/asm/kvm_para.h:99:29: error: inlining failed in call to always_inline 'kvm_handle_async_pf': function attribute mismatch
./arch/x86/include/asm/processor.h:826:29: error: inlining failed in call to always_inline 'prefetchw': function attribute mismatch
./arch/x86/include/asm/current.h:13:44: error: inlining failed in call to always_inline 'get_current': function attribute mismatch
arch/x86/mm/fault.c:1353:1: error: inlining failed in call to always_inline 'handle_page_fault': function attribute mismatch
kernel/locking/lockdep.c:396:29: error: inlining failed in call to always_inline 'lockdep_recursion_finish': function attribute mismatch
kernel/locking/lockdep.c:4725:5: error: inlining failed in call to always_inline '__lock_is_held': function attribute mismatch
# git bisect skip 14d3b376b6c3f66d62559d457d32edf565472163
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[e79302ae8c8cceb51cf642d5ace9da02668cb7b4] kcsan: Remove __no_kcsan_or_inline
testing commit e79302ae8c8cceb51cf642d5ace9da02668cb7b4 with gcc (GCC) 8.1.0
kernel signature: e6ccdec40c4f73125ce84b3721562c143feb1e8fab5c9bb33db7819cdc96d9c6
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip e79302ae8c8cceb51cf642d5ace9da02668cb7b4
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[5144f8a8dfd7b3681f0a2b5bf599a210b2315018] compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr
testing commit 5144f8a8dfd7b3681f0a2b5bf599a210b2315018 with gcc (GCC) 8.1.0
./arch/x86/include/asm/percpu.h:524:29: error: inlining failed in call to always_inline 'x86_this_cpu_constant_test_bit': function attribute mismatch
./include/linux/string.h:384:24: error: inlining failed in call to always_inline 'memset': function attribute mismatch
./arch/x86/include/asm/irq_stack.h:40:29: error: inlining failed in call to always_inline 'run_on_irqstack_cond': function attribute mismatch
./arch/x86/include/asm/kvm_para.h:99:29: error: inlining failed in call to always_inline 'kvm_handle_async_pf': function attribute mismatch
./arch/x86/include/asm/processor.h:826:29: error: inlining failed in call to always_inline 'prefetchw': function attribute mismatch
./arch/x86/include/asm/current.h:13:44: error: inlining failed in call to always_inline 'get_current': function attribute mismatch
arch/x86/mm/fault.c:1353:1: error: inlining failed in call to always_inline 'handle_page_fault': function attribute mismatch
kernel/locking/lockdep.c:396:29: error: inlining failed in call to always_inline 'lockdep_recursion_finish': function attribute mismatch
kernel/locking/lockdep.c:4725:5: error: inlining failed in call to always_inline '__lock_is_held': function attribute mismatch
./include/linux/debug_locks.h:15:28: error: inlining failed in call to always_inline '__debug_locks_off': function attribute mismatch
# git bisect skip 5144f8a8dfd7b3681f0a2b5bf599a210b2315018
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[145a773aef83181d47ebab21bb33c89233aadb1e] x86/entry: Fix #UD vs WARN more
testing commit 145a773aef83181d47ebab21bb33c89233aadb1e with gcc (GCC) 8.1.0
kernel signature: c9295e9219a6179261dba91997a5fe3b43f600abad96cbfa8a505df37739c100
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 145a773aef83181d47ebab21bb33c89233aadb1e
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[7b861a53e46b6b42ab8560b105af308cb72d7285] kasan: Bump required compiler version
testing commit 7b861a53e46b6b42ab8560b105af308cb72d7285 with gcc (GCC) 8.1.0
kernel signature: caf8a6cad4e4b6151d0efd7f8f5d2d042a87174c17bf64ddf846b1b01eaad9a5
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 7b861a53e46b6b42ab8560b105af308cb72d7285
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[2c92d787cc9fad57d05c96bd117782183768258a] Merge branch 'linus' into x86/entry, to resolve conflicts
testing commit 2c92d787cc9fad57d05c96bd117782183768258a with gcc (GCC) 8.1.0
kernel signature: 97ec4124ab3c442219c7c8d16f601530afdb6479b61c2c3dd63fd17f38f4e39c
all runs: OK
# git bisect bad 2c92d787cc9fad57d05c96bd117782183768258a
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[e82587336695f14283987c9aa0bfd775b520856d] x86, kcsan: Remove __no_kcsan_or_inline usage
testing commit e82587336695f14283987c9aa0bfd775b520856d with gcc (GCC) 8.1.0
kernel signature: e6ccdec40c4f73125ce84b3721562c143feb1e8fab5c9bb33db7819cdc96d9c6
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip e82587336695f14283987c9aa0bfd775b520856d
There are only 'skip'ped commits left to test.
The first bad commit could be any of:
6b643a07a7e41f9e11cfbb9bba4c5c9791ac2997
8e8bb06d199a5aa7a534aa3b3fc0abbbc11ca438
14d3b376b6c3f66d62559d457d32edf565472163
33aea07f30c261eff7ba229f19fd1b161e0fb851
5144f8a8dfd7b3681f0a2b5bf599a210b2315018
acf7b0bf7dcf5a96d9b44a0997227c7210d995c1
734d099ba644f5a92c70efa3d54d0ba2500ce162
7b861a53e46b6b42ab8560b105af308cb72d7285
5ddbc4082e1072eeeae52ff561a88620a05be08f
e3a9e681adb779b39565a28b3252c3be1033f994
c7aadc09321d8f9a1d3bd1e6d8a47222ecddf6c5
e79302ae8c8cceb51cf642d5ace9da02668cb7b4
145a773aef83181d47ebab21bb33c89233aadb1e
e82587336695f14283987c9aa0bfd775b520856d
2c92d787cc9fad57d05c96bd117782183768258a
We cannot bisect more!
revisions tested: 32, total time: 5h40m18.113895592s (build: 2h35m21.915387009s, test: 3h1m26.624013754s)
bisection is inconclusive, the first good commit could be any of:
6b643a07a7e41f9e11cfbb9bba4c5c9791ac2997
8e8bb06d199a5aa7a534aa3b3fc0abbbc11ca438
14d3b376b6c3f66d62559d457d32edf565472163
33aea07f30c261eff7ba229f19fd1b161e0fb851
5144f8a8dfd7b3681f0a2b5bf599a210b2315018
acf7b0bf7dcf5a96d9b44a0997227c7210d995c1
734d099ba644f5a92c70efa3d54d0ba2500ce162
7b861a53e46b6b42ab8560b105af308cb72d7285
5ddbc4082e1072eeeae52ff561a88620a05be08f
e3a9e681adb779b39565a28b3252c3be1033f994
c7aadc09321d8f9a1d3bd1e6d8a47222ecddf6c5
e79302ae8c8cceb51cf642d5ace9da02668cb7b4
145a773aef83181d47ebab21bb33c89233aadb1e
e82587336695f14283987c9aa0bfd775b520856d
2c92d787cc9fad57d05c96bd117782183768258a