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BUG: using __this_cpu_read() in preemptible code in panic

Status: closed as invalid on 2018/01/04 21:57
First crash: 2300d, last: 2300d

Sample crash report:
device gre0 entered promiscuous mode
check_preemption_disabled: 28 callbacks suppressed
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor1/4730
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4735 at mm/page_alloc.c:3550 __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3550
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 4735 Comm: syz-executor7 Not tainted 4.9.74-g173c52e #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d08076d0 ffffffff81d91b09 ffffffff83a46d60 ffff8801d08077a8
 ffffffff83aa3f00 ffffffff81450b06 0000000000000009 ffff8801d0807798
 ffffffff8142d161 0000000041b58ab3 ffffffff84189020 ffffffff8142cfa5
Call Trace:
 [<ffffffff81d91b09>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d91b09>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8142d161>] panic+0x1bc/0x3a8 kernel/panic.c:179
 [<ffffffff8112ef34>] __warn+0x1c4/0x1e0 kernel/panic.c:542
 [<ffffffff8112f19c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff81450b06>] __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3550
 [<ffffffff81451a9b>] __alloc_pages_nodemask+0x33b/0x6b0 mm/page_alloc.c:3857
 [<ffffffff814a4e6a>] __alloc_pages include/linux/gfp.h:433 [inline]
 [<ffffffff814a4e6a>] __alloc_pages_node include/linux/gfp.h:446 [inline]
 [<ffffffff814a4e6a>] alloc_pages_node include/linux/gfp.h:460 [inline]
 [<ffffffff814a4e6a>] kmalloc_order+0x2a/0x70 mm/slab_common.c:1043
 [<ffffffff814a4ecf>] kmalloc_order_trace+0x1f/0x190 mm/slab_common.c:1054
 [<ffffffff81536c1d>] kmalloc_large include/linux/slab.h:422 [inline]
 [<ffffffff81536c1d>] __kmalloc+0x19d/0x310 mm/slub.c:3730
 [<ffffffff82a78a3e>] kmalloc include/linux/slab.h:495 [inline]
 [<ffffffff82a78a3e>] kzalloc include/linux/slab.h:636 [inline]
 [<ffffffff82a78a3e>] keychord_write+0xce/0xbc0 drivers/input/misc/keychord.c:281
 [<ffffffff8156b7f3>] __vfs_write+0x103/0x680 fs/read_write.c:510
 [<ffffffff8156d4d9>] vfs_write+0x189/0x530 fs/read_write.c:560
 [<ffffffff81570fc9>] SYSC_write fs/read_write.c:607 [inline]
 [<ffffffff81570fc9>] SyS_write+0xd9/0x1b0 fs/read_write.c:599
 [<ffffffff838afa85>] entry_SYSCALL_64_fastpath+0x23/0xc6
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/01/04 15:35 https://android.googlesource.com/kernel/common android-4.9 173c52eae928 00193447 .config console log report ci-android-49-kasan-gce
* Struck through repros no longer work on HEAD.