Following kernel warning notices on Linux next-20220427 till date next-20220429 on qemu_arm64 and arm64 devices.
While testing libhugetlbfs test suite and ltp mm and hugetlb.
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Test log: ---------- truncate_above_4GB (2M: 64): PASS brk_near_huge (2M: 64): brk_near_huge: malloc.c:2401: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed. [ 15.685019] audit: type=1701 audit(1651222753.772:25): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=454 comm="brk_near_huge" exe="/usr/lib/libhugetlbfs/tests/obj64/brk_near_huge" sig=6 res=1 [ 15.685629] ------------[ cut here ]------------ [ 15.685631] WARNING: CPU: 2 PID: 454 at mm/page_alloc.c:5368 __alloc_pages+0x624/0xd50 [ 15.688908] Modules linked in: rfkill crct10dif_ce fuse [ 15.689714] CPU: 2 PID: 454 Comm: brk_near_huge Not tainted 5.18.0-rc4-next-20220429 #1 [ 15.691218] Hardware name: linux,dummy-virt (DT) [ 15.691716] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 15.693109] pc : __alloc_pages+0x624/0xd50 [ 15.693686] lr : alloc_pages+0xb8/0x170 [ 15.694358] sp : ffff800008813630 [ 15.694662] x29: ffff800008813630 x28: 000000000000000e x27: ffffbc6414591650 [ 15.695663] x26: ffff0000c089f800 x25: ffff800008813c58 x24: 000000000000000e [ 15.697045] x23: 0000000000000dc0 x22: 0000000000000000 x21: 000000000000000e [ 15.697866] x20: ffffbc64160189a0 x19: 0000000000040dc0 x18: ffffffffffffffff [ 15.699028] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 15.700073] x14: 0000000000000000 x13: 0000000000000000 x12: ffff0000ff7f5b58 [ 15.701344] x11: 0000000000000068 x10: ffffbc6414f7d000 x9 : ffffbc6413530e78 [ 15.702773] x8 : fffffc000321c001 x7 : 00000000f0000000 x6 : 0000000000000001 [ 15.703659] x5 : 0000000000000000 x4 : ffff0000c1a930c0 x3 : 0000000000000000 [ 15.705314] x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000040dc0 [ 15.706179] Call trace: [ 15.706712] __alloc_pages+0x624/0xd50 [ 15.707231] alloc_pages+0xb8/0x170 [ 15.707870] kmalloc_order+0x40/0x100 [ 15.708482] kmalloc_order_trace+0x38/0x130 [ 15.709246] __kmalloc+0x37c/0x3e0 [ 15.709691] __regset_get+0xa0/0x104 [ 15.710131] regset_get_alloc+0x20/0x2c [ 15.710524] elf_core_dump+0x3a8/0xd10 [ 15.711065] do_coredump+0xe50/0x138c [ 15.711640] get_signal+0x860/0x920 [ 15.712249] do_notify_resume+0x184/0x1480 [ 15.712723] el0_svc+0xa8/0xc0 [ 15.713052] el0t_64_sync_handler+0xbc/0x140 [ 15.713741] el0t_64_sync+0x18c/0x190 [ 15.714206] ---[ end trace 0000000000000000 ]--- task-size-overrun (2M: 64): PASS
metadata: git_ref: master git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next git_sha: 5469f0c06732a077c70a759a81f2a1f00b277694 git_describe: next-20220429 kernel_version: 5.18.0-rc4 kernel-config: https://builds.tuxbuild.com/28SmyZKz6g9xF6bf4J2YibE8Lo0/config kernel-config: https://builds.tuxbuild.com/28SmyZKz6g9xF6bf4J2YibE8Lo0/config vmlinux : https://builds.tuxbuild.com/28SmyZKz6g9xF6bf4J2YibE8Lo0/vmlinux.xz System.map : https://builds.tuxbuild.com/28SmyZKz6g9xF6bf4J2YibE8Lo0/System.map
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
-- Linaro LKFT https://lkft.linaro.org