Another data point is if change CONFIG_DEBUG_OBJECTS_TIMERS from =y to =n, it will also fix it. On Thu, 2019-08-22 at 17:33 -0400, Qian Cai wrote: > https://raw.githubusercontent.com/cailca/linux-mm/master/arm64.config > > Booting an arm64 ThunderX2 server with page_alloc.shuffle=1 [1] + > CONFIG_PROVE_LOCKING=y results in hanging. > > [1] https://lore.kernel.org/linux-mm/154899811208.3165233.17623209031065121886.s > tgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ > > ... > [ 125.142689][ T1] arm-smmu-v3 arm-smmu-v3.2.auto: option mask 0x2 > [ 125.149687][ T1] arm-smmu-v3 arm-smmu-v3.2.auto: ias 44-bit, oas 44-bit > (features 0x0000170d) > [ 125.165198][ T1] arm-smmu-v3 arm-smmu-v3.2.auto: allocated 524288 entries > for cmdq > [ 125.239425][ [ 125.251484][ T1] arm-smmu-v3 arm-smmu-v3.3.auto: option > mask 0x2 > [ 125.258233][ T1] arm-smmu-v3 arm-smmu-v3.3.auto: ias 44-bit, oas 44-bit > (features 0x0000170d) > [ 125.282750][ T1] arm-smmu-v3 arm-smmu-v3.3.auto: allocated 524288 entries > for cmdq > [ 125.320097][ T1] arm-smmu-v3 arm-smmu-v3.3.auto: allocated 524288 entries > for evtq > [ 125.332667][ T1] arm-smmu-v3 arm-smmu-v3.4.auto: option mask 0x2 > [ 125.339427][ T1] arm-smmu-v3 arm-smmu-v3.4.auto: ias 44-bit, oas 44-bit > (features 0x0000170d) > [ 125.354846][ T1] arm-smmu-v3 arm-smmu-v3.4.auto: allocated 524288 entries > for cmdq > [ 125.375295][ T1] arm-smmu-v3 arm-smmu-v3.4.auto: allocated 524288 entries > for evtq > [ 125.387371][ T1] arm-smmu-v3 arm-smmu-v3.5.auto: option mask 0x2 > [ 125.393955][ T1] arm-smmu-v3 arm-smmu-v3.5.auto: ias 44-bit, oas 44-bit > (features 0x0000170d) > [ 125.522605][ T1] arm-smmu-v3 arm-smmu-v3.5.auto: allocated 524288 entries > for cmdq > [ 125.543338][ T1] arm-smmu-v3 arm-smmu-v3.5.auto: allocated 524288 entries > for evtq > [ 126.694742][ T1] EFI Variables Facility v0.08 2004-May-17 > [ 126.799291][ T1] NET: Registered protocol family 17 > [ 126.978632][ T1] zswap: loaded using pool lzo/zbud > [ 126.989168][ T1] kmemleak: Kernel memory leak detector initialized > [ 126.989191][ T1577] kmemleak: Automatic memory scanning thread started > [ 127.044079][ T1335] pcieport 0000:0f:00.0: Adding to iommu group 0 > [ 127.388074][ T1] Freeing unused kernel memory: 22528K > [ 133.527005][ T1] Checked W+X mappings: passed, no W+X pages found > [ 133.533474][ T1] Run /init as init process > [ 133.727196][ T1] systemd[1]: System time before build time, advancing > clock. > [ 134.576021][ T1587] modprobe (1587) used greatest stack depth: 27056 bytes > left > [ 134.764026][ T1] systemd[1]: systemd 239 running in system mode. (+PAM > +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT > +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default- > hierarchy=legacy) > [ 134.799044][ T1] systemd[1]: Detected architecture arm64. > [ 134.804818][ T1] systemd[1]: Running in initial RAM disk. > <...hang...> > > Fix it by either set page_alloc.shuffle=0 or CONFIG_PROVE_LOCKING=n which allow > it to continue successfully. > > > [ 121.093846][ T1] systemd[1]: Set hostname to <hpe-apollo-cn99xx>. > [ 123.157524][ T1] random: systemd: uninitialized urandom read (16 bytes > read) > [ 123.168562][ T1] systemd[1]: Listening on Journal Socket. > [ OK ] Listening on Journal Socket. > [ 123.203932][ T1] random: systemd: uninitialized urandom read (16 bytes > read) > [ 123.212813][ T1] systemd[1]: Listening on udev Kernel Socket. > [ OK ] Listening on udev Kernel Socket. > ...
