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Tue, 11 Feb 2025 01:23:42 -0800 (PST) MIME-Version: 1.0 From: Naresh Kamboju Date: Tue, 11 Feb 2025 14:53:31 +0530 X-Gm-Features: AWEUYZkCfFvywFmEK_3ihZ_Dps30VosJ_2XHT5rsADpeF0SSllItAKLfMbuKVxo Message-ID: Subject: next-20250210: WARNING: at include/linux/rwsem.h:85 madvise_unlock To: open list , linux-mm , Linux PM , rcu , LTP List , Linux Regressions , lkft-triage@lists.linaro.org Cc: Andrew Morton , "Paul E. McKenney" , Vincent Guittot , Daniel Lezcano , Arnd Bergmann , Dan Carpenter , Anders Roxell Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Stat-Signature: pgracgg7i6k6jd7n86cmzbdkqiqpj7mt X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 6143220006 X-HE-Tag: 1739265823-737364 X-HE-Meta: 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 ovg/fjVt hdSTB5UbrvqbgRUK9N/rFcdqTVh+a27uWE0gAv4Oq4FsyRNYdGRMkML5IA38Lfdqc5Yd38Kc4wOIJ7Ho6wCcOCyGPfFNiG49Wvh750lDVKnJZ7Z/4AkbkhrjodD9lElISYPAU6T+DEo8hKisA8bMGpD4ydBg87nbiVA8KJYNcs7uFtCFq8prmzwzabRSQazoZqq1W7AKfsjGkQUY42HVXNQkgdEhHX7ah2FuVVsSuWKQxuHAX7vFS/M9KQAZvXUVe5PBcbymZYPKupdPcUAMHx5vZi3AM8ty0Jq5gAEhb/2bLwUScQ2eoQo06AqYr8/0YasO8bX5sNM43m3QE+yEII2o6R61YjQ4fQ3gbOlloYYTy+7/z1ofrMrDmlX/fAwIHnX6IC25WgT1Xfw4= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Regressions on arm64 Juno-r2 device while running LTP syscalls tests madvise01 warnings on the Linux next-20250210 tag. First seen on next-20250210 Good: next-20250207 Bad: next-20250210 This regression is reproducible with CONFIG_ARM64_64K_PAGES=y Test regression: LTP madvise01 WARNING include/linux/rwsem.h madvise_unlock Reported-by: Linux Kernel Functional Testing ## Test log command: madvise01 [ 1190.422933] /usr/local/bin/kirk[359]: starting test madvise01 (madvise01) tst_tmpdir.c:316: TINFO: Using /tmp/LTP_madSbRtkW as tmpdir (tmpfs filesystem) tst_test.c:1860: TINFO: LTP version: 20240930 [ 1190.607278] Injecting memory failure for pfn 0x8e13f at process virtual address 0xffff8c8c0000 tst_test.c:1864: TINFO:[ ** replaying previous printk message ** [ 1190.618980] Memory failure: 0x8e13f: recovery action for clean LRU page: Recovered [ 1190.619013] ------------[ cut here ]------------ [ 1190.619016] WARNING: CPU: 2 PID: 137820 at include/linux/rwsem.h:85 madvise_unlock (include/linux/rwsem.h:85 (discriminator 1) include/linux/rwsem.h:205 (discriminator 1) include/linux/mmap_lock.h:70 (discriminator 1) include/linux/mmap_lock.h:169 (discriminator 1) include/linux/mmap_lock.h:176 (discriminator 1) mm/madvise.c:1599 (discriminator 1)) Tested kernel: 6.14.0-rc2-next-20[ 1190.646322] Modules linked in: tun overlay btrfs blake2b_generic xor xor_neon raid6_pq zstd_compress panfrost hdlcd tda998x onboard_usb_dev drm_shmem_helper drm_client_lib cec gpu_sched drm_dma_helper drm_kms_helper fuse drm backlight ip_tables x_tables 250210 #1 SMP PREEMPT @1739162484[ 1190.671777] CPU: 2 UID: 0 PID: 137820 Comm: madvise01 Not tainted 6.14.0-rc2-next-20250210 #1 [ 1190.683191] Hardware name: ARM Juno development board (r2) (DT) aarch64 tst_test.c:1703: TINFO:[ 1192.996920] pstate: a0000005 (NzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) Timeout per run is 0h 05m 24s [ 1193.006802] pc : madvise_unlock (include/linux/rwsem.h:85 (discriminator 1) include/linux/rwsem.h:205 (discriminator 1) include/linux/mmap_lock.h:70 (discriminator 1) include/linux/mmap_lock.h:169 (discriminator 1) include/linux/mmap_lock.h:176 (discriminator 1) mm/madvise.c:1599 (discriminator 1)) [ 1211.692758] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 1211.692776] rcu: 1-...0: (0 ticks this GP) idle=f3a4/1/0x4000000000000000 softirq=946757/946757 fqs=2625 [ 1211.692794] rcu: 2-...0: (1 GPs behind) idle=2fac/1/0x4000000000000002 softirq=357256/357257 fqs=2625 [ 1211.692809] rcu: (detected by 4, t=5252 jiffies, g=196909, q=138 ncpus=6) [ 1211.692821] Sending NMI from CPU 4 to CPUs 1: [ 1221.694021] Sending NMI from CPU 4 to CPUs 2: [ 1231.695220] rcu: rcu_preempt kthread timer wakeup didn't happen for 5001 jiffies! g196909 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 1231.695231] rcu: Possible timer handling issue on cpu=4 timer-softirq=26922 [ 1231.695238] rcu: rcu_preempt kthread starved for 5002 jiffies! g196909 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=4 [ 1231.695251] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 1231.695257] rcu: RCU grace-period kthread stack dump: [ 1231.695262] task:rcu_preempt state:I stack:0 pid:18 tgid:18 ppid:2 task_flags:0x208040 flags:0x00000008 [ 1231.695280] Call trace: [ 1231.695286] __switch_to (arch/arm64/kernel/process.c:704) (T) [ 1231.695306] __schedule (kernel/sched/core.c:5381 kernel/sched/core.c:6765) [ 1231.695318] schedule (kernel/sched/core.c:6843 kernel/sched/core.c:6857) [ 1231.695330] schedule_timeout (include/linux/timer.h:185 kernel/time/sleep_timeout.c:100) [ 1231.695347] rcu_gp_fqs_loop (kernel/rcu/tree.c:2024 (discriminator 15)) [ 1231.695365] rcu_gp_kthread (kernel/rcu/tree.c:2229 (discriminator 2)) [ 1231.695380] kthread (kernel/kthread.c:464) [ 1231.695395] ret_from_fork (arch/arm64/kernel/entry.S:863) [ 1231.695410] rcu: Stack dump where RCU GP kthread last ran: [ 1231.695417] CPU: 4 UID: 0 PID: 0 Comm: swapper/4 Not tainted 6.14.0-rc2-next-20250210 #1 [ 1231.695428] Hardware name: ARM Juno development board (r2) (DT) [ 1231.695434] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1231.695445] pc : cpuidle_enter_state (drivers/cpuidle/cpuidle.c:292) [ 1231.695467] lr : cpuidle_enter_state (arch/arm64/include/asm/irqflags.h:26 arch/arm64/include/asm/irqflags.h:48 drivers/cpuidle/cpuidle.c:290) [ 1231.695481] sp : ffff80008378fd90 [ 1231.695486] x29: ffff80008378fd90 x28: 0000000000000000 x27: 0000000000000000 [ 1231.695503] x26: 0000000000000000 x25: 0000000000000001 x24: 0000011a1e4785a4 [ 1231.695519] x23: 0000000000000001 x22: ffff00080314a080 x21: 0000011a1e83fe44 [ 1231.695536] x20: 0000000000000001 x19: ffff00097d625778 x18: ffff8000a0c2fc10 [ 1231.695552] x17: 000000040044ffff x16: 00500072f5507510 x15: 0000000000000000 [ 1231.695568] x14: ffff0008007bc800 x13: ffff8008fad70000 x12: 0000000034d4d91d [ 1231.695585] x11: 0000000000000000 x10: 0000000000001000 x9 : ffff8000815901a4 [ 1231.695601] x8 : ffff80008378fc98 x7 : 0000000000000001 x6 : ffff8000829f9000 [ 1231.695617] x5 : ffff0008007bc800 x4 : ffff8000829f95e0 x3 : 0000000000000000 [ 1231.695633] x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000100000001 [ 1231.695649] Call trace: [ 1231.695653] cpuidle_enter_state (drivers/cpuidle/cpuidle.c:292) (P) [ 1231.695671] cpuidle_enter (drivers/cpuidle/cpuidle.c:391 (discriminator 2)) [ 1231.695692] do_idle (kernel/sched/idle.c:155 kernel/sched/idle.c:230 kernel/sched/idle.c:325) [ 1231.695716] cpu_startup_entry (kernel/sched/idle.c:423 (discriminator 1)) [ 1231.695732] secondary_start_kernel (arch/arm64/include/asm/atomic_ll_sc.h:95 (discriminator 2) arch/arm64/include/asm/atomic.h:28 (discriminator 2) include/linux/atomic/atomic-arch-fallback.h:546 (discriminator 2) include/linux/atomic/atomic-arch-fallback.h:994 (discriminator 2) include/linux/atomic/atomic-instrumented.h:436 (discriminator 2) include/linux/sched/mm.h:37 (discriminator 2) arch/arm64/kernel/smp.c:214 (discriminator 2)) [ 1231.695749] __secondary_switched (arch/arm64/kernel/head.S:421) madvise01.c:68: TINFO: Mounting [ 1231.961851] lr : do_madvise (mm/madvise.c:1748) [ 1242.412862] sp : ffff8000a188fdc0 tmp_madvise to /tmp/LTP_madSbRtkW/tmp_madvise fstyp=tmpfs flags=0[ 1242.416214] x29: ffff8000a188fdc0 x28: ffff000813417c00 x27: 0000000000000000 madvise01.c:113: TPASS: madvise[ 1294.712666] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 1294.712685] rcu: 2-...0: (1 GPs behind) idle=2fac/1/0x4000000000000002 softirq=357256/357257 fqs=7636 [ 1294.712704] rcu: (detected by 4, t=26007 jiffies, g=196909, q=184 ncpus=6) [ 1294.712716] Sending NMI from CPU 4 to CPUs 2: [ 1304.713915] rcu: rcu_preempt kthread timer wakeup didn't happen for 8168 jiffies! g196909 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 1304.713927] rcu: Possible timer handling issue on cpu=3 timer-softirq=35895 [ 1304.713933] rcu: rcu_preempt kthread starved for 8169 jiffies! g196909 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=3 [ 1304.713945] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 1304.713951] rcu: RCU grace-period kthread stack dump: [ 1304.713955] task:rcu_preempt state:I stack:0 pid:18 tgid:18 ppid:2 task_flags:0x208040 flags:0x00000008 [ 1304.713974] Call trace: [ 1304.713979] __switch_to (arch/arm64/kernel/process.c:704) (T) [ 1304.714000] __schedule (kernel/sched/core.c:5381 kernel/sched/core.c:6765) [ 1304.714013] schedule (kernel/sched/core.c:6843 kernel/sched/core.c:6857) [ 1304.714024] schedule_timeout (include/linux/timer.h:185 kernel/time/sleep_timeout.c:100) [ 1304.714042] rcu_gp_fqs_loop (kernel/rcu/tree.c:2024 (discriminator 15)) [ 1304.714061] rcu_gp_kthread (kernel/rcu/tree.c:2229 (discriminator 2)) [ 1304.714076] kthread (kernel/kthread.c:464) [ 1304.714090] ret_from_fork (arch/arm64/kernel/entry.S:863) [ 1304.714105] rcu: Stack dump where RCU GP kthread last ran: [ 1304.714109] Sending NMI from CPU 4 to CPUs 3: [ 1304.714119] NMI backtrace for cpu 3 [ 1304.714130] CPU: 3 UID: 0 PID: 205 Comm: systemd-udevd Not tainted 6.14.0-rc2-next-20250210 #1 [ 1304.714143] Hardware name: ARM Juno development board (r2) (DT) [ 1304.714148] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1304.714158] pc : queued_spin_lock_slowpath (kernel/locking/qspinlock.c:380 (discriminator 5)) [ 1304.714176] lr : _raw_spin_lock_bh (kernel/locking/spinlock.c:179) [ 1304.714189] sp : ffff800085e6f310 [ 1304.714193] x29: ffff800085e6f310 x28: ffff000808761c00 x27: ffff00080295b500 [ 1304.714210] x26: ffff00081e724e00 x25: 0000000000000000 x24: 0000000000008080 [ 1304.714224] x23: 0000000000000000 x22: 0000000074000080 x21: 0000000000000078 [ 1304.714239] x20: ffff000802bb0a30 x19: ffff000802bb0a30 x18: 0000000000000000 [ 1304.714254] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaabea75a70 [ 1304.714268] x14: 0000000000000000 x13: 2dcd92d500000000 x12: 40982a24d45a0569 [ 1304.714283] x11: 3cc1638a3642b30d x10: d5e7818600000000 x9 : ffff80008159decc [ 1304.714298] x8 : ffff800085e6f278 x7 : 0000000000000000 x6 : 0000000000000201 [ 1304.714312] x5 : ffff8000829f9000 x4 : ffff8000829f95e0 x3 : 0000000000000001 [ 1304.714326] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000001 [ 1304.714339] Call trace: [ 1304.714343] queued_spin_lock_slowpath (kernel/locking/qspinlock.c:380 (discriminator 5)) (P) [ 1304.714360] _raw_spin_lock_bh (kernel/locking/spinlock.c:179) [ 1304.714374] lock_sock_nested (net/core/sock.c:3649 (discriminator 1)) [ 1304.714388] tcp_sock_set_cork (net/ipv4/tcp.c:3547 net/ipv4/tcp.c:3560) [ 1304.714405] xs_tcp_send_request (net/sunrpc/xprtsock.c:1124) [ 1304.714418] xprt_transmit (net/sunrpc/xprt.c:1578 net/sunrpc/xprt.c:1634) [ 1304.714434] call_transmit (net/sunrpc/clnt.c:2283 net/sunrpc/clnt.c:2265) [ 1304.714447] __rpc_execute (include/asm-generic/bitops/generic-non-atomic.h:128 net/sunrpc/sched.c:954) [ 1304.714463] rpc_execute (include/linux/sched/mm.h:339 (discriminator 1) include/linux/sched/mm.h:399 (discriminator 1) net/sunrpc/sched.c:1026 (discriminator 1)) [ 1304.714476] rpc_run_task (net/sunrpc/clnt.c:1250) [ 1304.714488] rpc_call_sync (net/sunrpc/clnt.c:1278 (discriminator 1)) [ 1304.714501] nfs3_rpc_wrapper (fs/nfs/nfs3proc.c:36) [ 1304.714516] nfs3_proc_getattr (fs/nfs/nfs3proc.c:123) [ 1304.714528] __nfs_revalidate_inode (fs/nfs/inode.c:1311 (discriminator 2)) [ 1304.714546] nfs_access_get_cached (fs/nfs/dir.c:3058 (discriminator 1) fs/nfs/dir.c:3118 (discriminator 1)) [ 1304.714561] nfs_do_access (fs/nfs/dir.c:3246) [ 1304.714574] nfs_permission (fs/nfs/dir.c:3360) [ 1304.714588] inode_permission (fs/namei.c:588 fs/namei.c:562) [ 1304.714606] link_path_walk.part.0.constprop.0 (fs/namei.c:1831 fs/namei.c:2422) [ 1304.714624] path_lookupat (fs/namei.c:2607 fs/namei.c:2630) [ 1304.714639] filename_lookup (fs/namei.c:2660) [ 1304.714654] kern_path (fs/namei.c:2768) [ 1304.714669] unix_find_other (net/unix/af_unix.c:1153 net/unix/af_unix.c:1182) [ 1304.714681] unix_dgram_sendmsg (net/unix/af_unix.c:2038) [ 1304.714692] ____sys_sendmsg (net/socket.c:718 (discriminator 1) net/socket.c:733 (discriminator 1) net/socket.c:2573 (discriminator 1)) [ 1304.714710] ___sys_sendmsg (net/socket.c:2627) [ 1304.714725] __sys_sendmsg (net/socket.c:2659 (discriminator 1)) [ 1304.714740] __arm64_sys_sendmsg (net/socket.c:2662) [ 1304.714755] invoke_syscall.constprop.0 (arch/arm64/include/asm/syscall.h:61 arch/arm64/kernel/syscall.c:54) [ 1304.714772] do_el0_svc (arch/arm64/kernel/syscall.c:139 arch/arm64/kernel/syscall.c:151) [ 1304.714787] el0_svc (arch/arm64/include/asm/irqflags.h:82 (discriminator 1) arch/arm64/include/asm/irqflags.h:123 (discriminator 1) arch/arm64/include/asm/irqflags.h:136 (discriminator 1) arch/arm64/kernel/entry-common.c:165 (discriminator 1) arch/arm64/kernel/entry-common.c:178 (discriminator 1) arch/arm64/kernel/entry-common.c:745 (discriminator 1)) [ 1304.714806] el0t_64_sync_handler (arch/arm64/kernel/entry-common.c:763) [ 1304.714821] el0t_64_sync (arch/arm64/kernel/entry.S:600) test for MADV_NORMAL PASSED ## Source * kernel version: 6.14.0-rc2-next-20250210 * git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git * git sha: df5d6180169ae06a2eac57e33b077ad6f6252440 * git describe: next-20250210 * project details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250210/ * architecture: arm64 * device: Juno-r2 * toolchain: gcc-13 * config : CONFIG_ARM64_64K_PAGES=y (gcc-13-lkftconfig-64k_page_size) * build config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2spp0dMfaQHNeHr0jT9DgXiO1Px/config * build: https://storage.tuxsuite.com/public/linaro/lkft/builds/2spp0dMfaQHNeHr0jT9DgXiO1Px/ ## Boot log Juno-r2 log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250210/testrun/27251102/suite/log-parser-test/test/warning-warning-cpu-pid-at-includelinuxrwsemh-madvise_unlock/log Juno-r2 details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250210/testrun/27251102/suite/log-parser-test/test/warning-warning-cpu-pid-at-includelinuxrwsemh-madvise_unlock/ Juno-r2 history: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250210/testrun/27251102/suite/log-parser-test/test/warning-warning-cpu-pid-at-includelinuxrwsemh-madvise_unlock/history/ Juno-r2 lava log 1: https://lkft.validation.linaro.org/scheduler/job/8117395#L43180 Juno-r2 lava log 2: https://lkft.validation.linaro.org/scheduler/job/8118169 Juno-r2 lava log 3: https://lkft.validation.linaro.org/scheduler/job/8118170 -- Linaro LKFT https://lkft.linaro.org