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Original question:

[参考译文] TDA4VM-Q1：CPU 上 RCU_PREEMT 自检测失速的补丁

TDA4VE-Q1: TDA4VE rcu_preempt self-detected stall on CPU error

teng xingru
Prodigy 30 points

Part Number: TDA4VE-Q1
Other Parts Discussed in Thread: TDA4VM, TDA4VM-Q1

Hello,

I am currently performing power cycling tests on the TDA4 platform and have encountered an issue with "rcu_preempt self-detected stall." The problem occurs after approximately 1000 power cycles, where the CPU becomes unresponsive for an extended period. The logs consistently show the "rcu_preempt self-detected stall" error.

I found that there are patches available for TDA4VM related to this issue, but I have been unable to locate a corresponding patch for TDA4 echo. Could you please provide the appropriate patch for the TDA4 echo platform?image.pngdmesg.26.txt 

  • 0
    TI__Mastermind 46135 points

    Hello, we have received your case and the investigation will take some time. Thank you for your patience.

  • 0
    TI__Mastermind 46135 points
    teng xingru 说：
    are patches available for TDA4VM

    Can you share the links? 

  • 0
    Prodigy 30 points

    Here is the link to the patch discussion for TDA4VM-Q1 regarding the "rcu_preempt self-detected stall" issue, as referenced in the thread:  https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1493726/tda4vm-q1-patch-for-rcu_preempt-self-detected-stall-on-cpu?keyMatch=rcu%20preempt%20self-detected%20stall%20on%20CPU&tisearch=universal_search

    Notably, within the same thread, there is a mention of the TDA4 Echo platform encountering the exact same RCU stall issue. Unfortunately, the discussion did not progress to a resolved solution for the TDA4 Echo variant.

    Thank you for your assistance.

    Best regards

  • 0 回复 teng xingru
    TI__Mastermind 46135 points

    Hello.

    Those are driver fixes which apply to even for TDA4VE similar to TDA4VM. There is nothing SOC specific in the patches.
    Customer can use the same patches.

  • 0 回复 Lydia
    Prodigy 30 points

    I have already applied the patch, but after a full day of power cycling tests, the same issue still occurred. Currently, I have no leads on how to proceed and require assistance to resolve this.

    全屏 rcu.txt 下载 
    [    5.216388] remoteproc remoteproc2: Booting fw image j721s2-main-r5f0_0-fw, size 822668
[    5.241389] rproc-virtio rproc-virtio.8.auto: assigned reserved memory node vision-apps-r5f-dma-memory@a7000000
[    5.262354] virtio_rpmsg_bus virtio2: rpmsg host is online
[    5.274642] rproc-virtio rproc-virtio.8.auto: registered virtio2 (type 7)
[    5.290606] remoteproc remoteproc2: remote processor 5c00000.r5f is now up
[   24.678547] rcu: INFO: rcu_preempt self-detected stall on CPU
[   24.684291] rcu:     0-....: (1 GPs behind) idle=0334/1/0x4000000000000000 softirq=2581/2591 fqs=2617
[   24.693230]  (t=5252 jiffies g=-199 q=20152 ncpus=2)
[   24.698184] CPU: 0 PID: 217 Comm: dbus-daemon Tainted: G           O       6.1.46+ #1
[   24.705993] Hardware name: Texas Instruments J721S2 EVM (DT)
[   24.711634] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   24.718578] pc : _stext+0xa4/0x2a4
[   24.721972] lr : _stext+0x6c/0x2a4
[   24.725361] sp : ffff800008003f60
[   24.728662] x29: ffff800008003f60 x28: ffff00000269d580 x27: 0000000000000002
[   24.735782] x26: ffff00000014a478 x25: 00000000000000c0 x24: ffff8000090fd000
[   24.742899] x23: 0000000040000005 x22: ffff800009103000 x21: ffff8000090fd9c8
[   24.750017] x20: ffff8000092660c0 x19: ffff00000269d580 x18: 0000000000000000
[   24.757135] x17: ffff800066b4a000 x16: ffff800008000000 x15: 0000000000000000
[   24.764251] x14: 0000000000000231 x13: 0000000000000001 x12: 0000000000000000
[   24.771368] x11: ffff00006fc4e340 x10: ffff80000927fe28 x9 : ffff800009269d38
[   24.778485] x8 : 00000000d1cef000 x7 : 7fffffffffffffff x6 : 000000000ebcfa73
[   24.785602] x5 : 03ffffffffffffff x4 : 0000000000000015 x3 : ffff00000269d580
[   24.792720] x2 : ffff800066b4a000 x1 : 00000000000000e0 x0 : ffff800009103c80
[   24.799837] Call trace:
[   24.802271]  _stext+0xa4/0x2a4
[   24.805313]  ____do_softirq+0x10/0x20
[   24.808964]  call_on_irq_stack+0x24/0x4c
[   24.812873]  do_softirq_own_stack+0x1c/0x30
[   24.817041]  __irq_exit_rcu+0xcc/0xf4
[   24.820691]  irq_exit_rcu+0x10/0x20
[   24.824167]  el1_interrupt+0x38/0x70
[   24.827732]  el1h_64_irq_handler+0x18/0x2c
[   24.831815]  el1h_64_irq+0x64/0x68
[   24.835204]  __get_obj_cgroup_from_memcg+0x5c/0x130
[   24.840068]  get_obj_cgroup_from_current+0xc4/0x1dc
[   24.844930]  kmem_cache_alloc_lru+0x70/0x510
[   24.849186]  __d_alloc+0x34/0x204
[   24.852489]  d_alloc_pseudo+0x10/0x30
[   24.856138]  alloc_file_pseudo+0x64/0x120
[   24.860135]  anon_inode_getfile+0x74/0xfc
[   24.864133]  __arm64_sys_epoll_create1+0x80/0x110
[   24.868824]  invoke_syscall+0x48/0x114
[   24.872560]  el0_svc_common.constprop.0+0xd4/0xfc
[   24.877250]  do_el0_svc+0x30/0xd0
[   24.880554]  el0_svc+0x2c/0x84
[   24.883597]  el0t_64_sync_handler+0xbc/0x140
[   24.887853]  el0t_64_sync+0x18c/0x190
[   87.710548] rcu: INFO: rcu_preempt self-detected stall on CPU
[   87.716289] rcu:     0-....: (1 GPs behind) idle=0334/1/0x4000000000000000 softirq=2581/2591 fqs=10472
[   87.725315]  (t=21011 jiffies g=-199 q=20232 ncpus=2)
[   87.730354] CPU: 0 PID: 217 Comm: dbus-daemon Tainted: G           O       6.1.46+ #1
[   87.738164] Hardware name: Texas Instruments J721S2 EVM (DT)
[   87.743805] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   87.750746] pc : _stext+0xa4/0x2a4
[   87.754140] lr : _stext+0x6c/0x2a4
[   87.757527] sp : ffff800008003f60
[   87.760826] x29: ffff800008003f60 x28: ffff00000269d580 x27: 0000000000000002
[   87.767944] x26: ffff00000014a478 x25: 00000000000000c0 x24: ffff8000090fd000
[   87.775061] x23: 0000000040000005 x22: ffff800009103000 x21: ffff8000090fd9c8
[   87.782178] x20: ffff8000092660c0 x19: ffff00000269d580 x18: 0000000000000000
[   87.789295] x17: ffff800066b4a000 x16: ffff800008000000 x15: 0000000000000000
[   87.796412] x14: 0000000000000231 x13: 0000000000000001 x12: 0000000000000000
[   87.803529] x11: ffff00006fc4e340 x10: ffff80000927fe28 x9 : ffff800009269d38
[   87.810646] x8 : 00000000d1cef000 x7 : 7fffffffffffffff x6 : 000000000ebcfa73
[   87.817763] x5 : 03ffffffffffffff x4 : 0000000000000015 x3 : ffff00000269d580
[   87.824880] x2 : ffff800066b4a000 x1 : 00000000000000e0 x0 : ffff800009103c80
[   87.831997] Call trace:
[   87.834431]  _stext+0xa4/0x2a4
[   87.837472]  ____do_softirq+0x10/0x20
[   87.841123]  call_on_irq_stack+0x24/0x4c
[   87.845031]  do_softirq_own_stack+0x1c/0x30
[   87.849200]  __irq_exit_rcu+0xcc/0xf4
[   87.852850]  irq_exit_rcu+0x10/0x20
[   87.856326]  el1_interrupt+0x38/0x70
[   87.859891]  el1h_64_irq_handler+0x18/0x2c
[   87.863974]  el1h_64_irq+0x64/0x68
[   87.867361]  __get_obj_cgroup_from_memcg+0x5c/0x130
[   87.872225]  get_obj_cgroup_from_current+0xc4/0x1dc
[   87.877088]  kmem_cache_alloc_lru+0x70/0x510
[   87.881343]  __d_alloc+0x34/0x204
[   87.884647]  d_alloc_pseudo+0x10/0x30
[   87.888295]  alloc_file_pseudo+0x64/0x120
[   87.892291]  anon_inode_getfile+0x74/0xfc
[   87.896290]  __arm64_sys_epoll_create1+0x80/0x110
[   87.900981]  invoke_syscall+0x48/0x114
[   87.904718]  el0_svc_common.constprop.0+0xd4/0xfc
[   87.909408]  do_el0_svc+0x30/0xd0
[   87.912709]  el0_svc+0x2c/0x84
[   87.915752]  el0t_64_sync_handler+0xbc/0x140
[   87.920008]  el0t_64_sync+0x18c/0x190
[   87.923770] virtio_rpmsg_bus virtio0: creating channel rpmsg_chrdev addr 0xd
[   87.931118] virtio_rpmsg_bus virtio1: creating channel rpmsg_chrdev addr 0xd
[   87.938413] virtio_rpmsg_bus virtio0: creating channel rpmsg_chrdev addr 0x15
[   87.946020] virtio_rpmsg_bus virtio2: creating channel rpmsg_chrdev addr 0xd
[   87.953286] virtio_rpmsg_bus virtio0: creating channel rpmsg_chrdev addr 0x54
[   87.960748] virtio_rpmsg_bus virtio1: creating channel rpmsg_chrdev addr 0x15
[   87.968272] virtio_rpmsg_bus virtio0: creating channel ti.ipc4.ping-pong addr 0xe
[   87.975993] virtio_rpmsg_bus virtio0: msg received with no recipient
[   87.982385] virtio_rpmsg_bus virtio0: msg received with no recipient
[   87.988754] virtio_rpmsg_bus virtio0: msg received with no recipient
[   87.995174] virtio_rpmsg_bus virtio0: msg received with no recipient
[   88.001541] virtio_rpmsg_bus virtio0: msg received with no recipient
[   88.007893] virtio_rpmsg_bus virtio0: msg received with no recipient
[   88.014253] virtio_rpmsg_bus virtio0: msg received with no recipient
[   88.020635] virtio_rpmsg_bus virtio0: msg received with no recipient
[   88.027002] virtio_rpmsg_bus virtio0: msg received with no recipient
[   88.033364] virtio_rpmsg_bus virtio0: msg received with no recipient
[   88.040925] virtio_rpmsg_bus virtio2: creating channel rpmsg_chrdev addr 0x15
[   88.048231] virtio_rpmsg_bus virtio1: creating channel rpmsg_chrdev addr 0x55
[   88.055927] virtio_rpmsg_bus virtio2: creating channel rpmsg_chrdev addr 0x4e
[   88.063224] virtio_rpmsg_bus virtio1: creating channel ti.ipc4.ping-pong addr 0xe
[   88.071960] 8021q: 802.1Q VLAN Support v1.8
[   88.076397] virtio_rpmsg_bus virtio2: creating channel ti.ipc4.ping-pong addr 0xe
start /usr/bin/start-dra ...
[   88.198044] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Quota mode: none.
[   88.211909] am65-cpsw-nuss 46000000.ethernet eth0: PHY [46000f00.mdio:04] driver [JLSemi JL31xx T1 PHY] (irq=POLL)
[   88.225592] am65-cpsw-nuss 46000000.ethernet: Adding vlan 4 to vlan filter
[   88.233376] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 2
[   88.240631] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 1
[   88.240746] omap_rng 4e10000.rng: Random Number Generator ver. 241b34c
[   88.248431] am65-cpsw-nuss 46000000.ethernet: Adding vlan 6 to vlan filter
[   88.260820] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 2
[   88.267280] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 1
[   88.273883] am65-cpsw-nuss 46000000.ethernet: Adding vlan 8 to vlan filter
[   88.280862] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 2
[   88.287329] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 1
[   88.293877] am65-cpsw-nuss 46000000.ethernet: Adding vlan 9 to vlan filter
[   88.300857] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 2
[   88.307310] am65-cpsw-nuss 46000000.ethernet: get: wrong ale fld id 1
[   88.313856] am65-cpsw-nuss 46000000.ethernet eth0: configuring for phy/rgmii-rxid link mode
[   88.323232] 8021q: adding VLAN 0 to HW filter on device eth0
[   89.008473] EXT4-fs (mmcblk0p8): recovery complete
[   89.013327] EXT4-fs (mmcblk0p8): mounted filesystem with ordered data mode. Quota mode: none.
[   89.052138] EXT4-fs (mmcblk0p9): mounted filesystem with ordered data mode. Quota mode: none.
[   89.103317] EXT4-fs (mmcblk0p10): recovery complete
[   89.108764] EXT4-fs (mmcblk0p10): mounted filesystem with ordered data mode. Quota mode: none.
[   89.136339] emmc region is locked
net.core.wmem_max = 4194304
net.core.wmem_default = 1048576
start_idrive ...
start_idrive finish !!!
[   89.415630] am65-cpsw-nuss 46000000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off
[   89.424719] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   90.582195] EXT4-fs (mmcblk0p9): re-mounted. Quota mode: none.
[   90.700582] EXT4-fs (mmcblk0p9): re-mounted. Quota mode: none.
[   90.717377] EXT4-fs (mmcblk0p2): re-mounted. Quota mode: none.
[   90.720551] EXT4-fs (mmcblk0p9): re-mounted. Quota mode: none.
[   90.762864] EXT4-fs (mmcblk0p2): re-mounted. Quota mode: none.
[   90.881493] EXT4-fs (mmcblk0p9): re-mounted. Quota mode: none.
[   90.897253] EXT4-fs (mmcblk0p2): re-mounted. Quota mode: none.
[   90.952163] EXT4-fs (mmcblk0p2): re-mounted. Quota mode: none.
[   91.010383] PVR_K:  678: RGX Firmware image 'rgx.fw.36.53.104.796' loaded
[   91.031694] PVR_K:  678: Shader binary image 'rgx.sh.36.53.104.796' loaded
[   91.371907] systemd-journald[155]: Oldest entry in /run/log/journal/fedeecf1c73a40ddb1e2a625c487722d/system.journal is older than the configured file retention duration (1month), suggesting rotation.
[   91.394755] systemd-journald[155]: /run/log/journal/fedeecf1c73a40ddb1e2a625c487722d/system.journal: Journal header limits reached or header out-of-date, rotating.

  • 0 回复 teng xingru
    TI__Mastermind 46135 points

    Hello,

    Is this reproducible on the TI EVM and if yes what is the SDK version?