silver0480

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    silver0480 got a reaction from aegiap in system crashes after sync command   
    @gprovost Thanks.
    Already tested , but nothing gets better.
     
    Tested (Crash) : fix cpufreq Max = 1200000 Min = 1200000 governor = performance
    Tested (Crash) : fix cpufreq Max = 1008000 Min = 1008000 governor = powersave
    Tested (Crash) : All ZRAM disabled ( /etc/default/armbian-zram-config )
     
    I took kernel via serial console. (dmesg -E)
    "sysctl -w vm.drop_caches=3" ,  cause kernel panic Immediately.
     
    root@helios64:~# [50657.866770] Insufficient stack space to handle exception! [50657.866777] ESR: 0x96000047 -- DABT (current EL) [50657.867667] FAR: 0xffff800011d27fd0 [50657.867975] Task stack: [0xffff800011d28000..0xffff800011d2c000] [50657.868531] IRQ stack: [0xffff800011af8000..0xffff800011afc000] [50657.869086] Overflow stack: [0xffff0000f77922b0..0xffff0000f77932b0] [50657.869645] CPU: 4 PID: 30 Comm: ksoftirqd/4 Tainted: G C 5.9.14-rockchip64 #20.11.4 [50657.870435] Hardware name: Helios64 (DT) [50657.870781] pstate: 40000085 (nZcv daIf -PAN -UAO BTYPE=--) [50657.871278] pc : kfree+0x4/0x498 [50657.871563] lr : __free_slab+0xac/0x1a8 [50657.871899] sp : ffff800011d28060 [50657.872191] x29: ffff800011d28060 x28: fffffe00013ea840 [50657.872658] x27: 0000000000100001 x26: ffff000057aa1400 [50657.873124] x25: ffff0000f6c01600 x24: fffffffffffff000 [50657.873590] x23: 0000000000000000 x22: 0000000000000000 [50657.874055] x21: 0000000000000001 x20: ffff0000f6c01600 [50657.874521] x19: fffffe00013ea840 x18: 0000000000000028 [50657.874986] x17: 0000000000000000 x16: 0000000000000000 [50657.875451] x15: ffff0000e7455a78 x14: 00000033b5e86238 [50657.875917] x13: 000000000000034e x12: 000000000000031e [50657.876382] x11: 0000000000000000 x10: 0000000000000001 [50657.876848] x9 : 00000000f0000000 x8 : 0000000000100000 [50657.877313] x7 : ffff0000f6c00ba0 x6 : 0000000000000000 [50657.877778] x5 : 0000000000000000 x4 : 0000000000005df0 [50657.878243] x3 : 0000000000000010 x2 : ffff0000f6f59d00 [50657.878708] x1 : 1ffff00000000000 x0 : ffff000057a9fc00 [50657.879178] Kernel panic - not syncing: kernel stack overflow [50657.879684] CPU: 4 PID: 30 Comm: ksoftirqd/4 Tainted: G C 5.9.14-rockchip64 #20.11.4 [50657.880473] Hardware name: Helios64 (DT) [50657.880819] Call trace: [50657.881041] dump_backtrace+0x0/0x200 [50657.881365] show_stack+0x18/0x28 [50657.881660] dump_stack+0xc0/0x11c [50657.881963] panic+0x164/0x364 [50657.882236] nmi_panic+0x64/0x98 [50657.882520] handle_bad_stack+0x11c/0x148 [50657.882873] __bad_stack+0x90/0x94 [50657.883175] kfree+0x4/0x498 [50657.883429] discard_slab+0x70/0xa0 [50657.883738] __slab_free+0x3a0/0x3e8 [50657.884052] kfree+0x484/0x498 [50657.884320] __free_slab+0xac/0x1a8 [50657.884628] discard_slab+0x70/0xa0 [50657.884936] __slab_free+0x3a0/0x3e8 [50657.885250] kfree+0x484/0x498 [50657.885521] __free_slab+0xac/0x1a8 [50657.885827] discard_slab+0x70/0xa0 [50657.886134] __slab_free+0x3a0/0x3e8 [50657.886448] kfree+0x484/0x498 [50657.886718] __free_slab+0xac/0x1a8 [50657.887026] discard_slab+0x70/0xa0 [50657.887334] __slab_free+0x3a0/0x3e8 [50657.887648] kfree+0x484/0x498 [50657.887918] __free_slab+0xac/0x1a8 [50657.888225] discard_slab+0x70/0xa0 [50657.888531] __slab_free+0x3a0/0x3e8 [50657.888846] kfree+0x484/0x498 [50657.889116] __free_slab+0xac/0x1a8 [50657.889424] discard_slab+0x70/0xa0 [50657.889732] __slab_free+0x3a0/0x3e8 [50657.890047] kfree+0x484/0x498 [50657.890317] __free_slab+0xac/0x1a8 [50657.890625] discard_slab+0x70/0xa0 [50657.890933] __slab_free+0x3a0/0x3e8 [50657.891247] kfree+0x484/0x498 [50657.891517] __free_slab+0xac/0x1a8 [50657.891826] discard_slab+0x70/0xa0 [50657.892132] __slab_free+0x3a0/0x3e8 [50657.892446] kfree+0x484/0x498 [50657.892716] __free_slab+0xac/0x1a8 [50657.893025] discard_slab+0x70/0xa0 [50657.893331] __slab_free+0x3a0/0x3e8 [50657.893646] kfree+0x484/0x498 [50657.893916] __free_slab+0xac/0x1a8 [50657.894222] discard_slab+0x70/0xa0 [50657.894529] __slab_free+0x3a0/0x3e8 [50657.894843] kfree+0x484/0x498 [50657.895113] __free_slab+0xac/0x1a8 [50657.895420] discard_slab+0x70/0xa0 [50657.895728] __slab_free+0x3a0/0x3e8 [50657.896043] kfree+0x484/0x498 [50657.896311] __free_slab+0xac/0x1a8 [50657.896618] discard_slab+0x70/0xa0 [50657.896924] __slab_free+0x3a0/0x3e8 [50657.897239] kfree+0x484/0x498 [50657.897509] __free_slab+0xac/0x1a8 [50657.897815] discard_slab+0x70/0xa0 [50657.898122] __slab_free+0x3a0/0x3e8 [50657.898437] kfree+0x484/0x498 [50657.898707] __free_slab+0xac/0x1a8 [50657.899013] discard_slab+0x70/0xa0 [50657.899320] __slab_free+0x3a0/0x3e8 [50657.899635] kfree+0x484/0x498 [50657.899905] __free_slab+0xac/0x1a8 [50657.900212] discard_slab+0x70/0xa0 [50657.900519] __slab_free+0x3a0/0x3e8 [50657.900834] kfree+0x484/0x498 [50657.901104] __free_slab+0xac/0x1a8 [50657.901411] discard_slab+0x70/0xa0 [50657.901717] __slab_free+0x3a0/0x3e8 [50657.902032] kfree+0x484/0x498 [50657.902302] __free_slab+0xac/0x1a8 [50657.902608] discard_slab+0x70/0xa0 [50657.902915] __slab_free+0x3a0/0x3e8 [50657.903229] kfree+0x484/0x498 [50657.903499] __free_slab+0xac/0x1a8 [50657.903807] discard_slab+0x70/0xa0 [50657.904115] __slab_free+0x3a0/0x3e8 [50657.904429] kfree+0x484/0x498 [50657.904699] __free_slab+0xac/0x1a8 [50657.905008] discard_slab+0x70/0xa0 [50657.905314] __slab_free+0x3a0/0x3e8 [50657.905628] kfree+0x484/0x498 [50657.905899] __free_slab+0xac/0x1a8 [50657.906206] discard_slab+0x70/0xa0 [50657.906513] __slab_free+0x3a0/0x3e8 [50657.906827] kfree+0x484/0x498 [50657.907096] __free_slab+0xac/0x1a8 [50657.907402] discard_slab+0x70/0xa0 [50657.907709] __slab_free+0x3a0/0x3e8 [50657.908023] kfree+0x484/0x498 [50657.908293] __free_slab+0xac/0x1a8 [50657.908600] discard_slab+0x70/0xa0 [50657.908908] __slab_free+0x3a0/0x3e8 [50657.909223] kfree+0x484/0x498 [50657.909493] __free_slab+0xac/0x1a8 [50657.909802] discard_slab+0x70/0xa0 [50657.910110] __slab_free+0x3a0/0x3e8 [50657.910424] kfree+0x484/0x498 [50657.910694] __free_slab+0xac/0x1a8 [50657.911000] discard_slab+0x70/0xa0 [50657.911308] __slab_free+0x3a0/0x3e8 [50657.911622] kfree+0x484/0x498 [50657.911892] __free_slab+0xac/0x1a8 [50657.912200] discard_slab+0x70/0xa0 [50657.912506] __slab_free+0x3a0/0x3e8 [50657.912821] kfree+0x484/0x498 [50657.913091] __free_slab+0xac/0x1a8 [50657.913397] discard_slab+0x70/0xa0 [50657.913704] __slab_free+0x3a0/0x3e8 [50657.914018] kfree+0x484/0x498 [50657.914288] __free_slab+0xac/0x1a8 [50657.914594] discard_slab+0x70/0xa0 [50657.914901] __slab_free+0x3a0/0x3e8 [50657.915215] kfree+0x484/0x498 [50657.915486] __free_slab+0xac/0x1a8 [50657.915792] discard_slab+0x70/0xa0 [50657.916099] __slab_free+0x3a0/0x3e8 [50657.916413] kfree+0x484/0x498 [50657.916684] __free_slab+0xac/0x1a8 [50657.916991] discard_slab+0x70/0xa0 [50657.917299] __slab_free+0x3a0/0x3e8 [50657.917614] kfree+0x484/0x498 [50657.917884] __free_slab+0xac/0x1a8 [50657.918192] discard_slab+0x70/0xa0 [50657.918498] __slab_free+0x3a0/0x3e8 [50657.918812] kfree+0x484/0x498 [50657.919081] __free_slab+0xac/0x1a8 [50657.919388] discard_slab+0x70/0xa0 [50657.919696] __slab_free+0x3a0/0x3e8 [50657.920010] kfree+0x484/0x498 [50657.920280] __free_slab+0xac/0x1a8 [50657.920587] discard_slab+0x70/0xa0 [50657.920893] __slab_free+0x3a0/0x3e8 [50657.921208] kfree+0x484/0x498 [50657.921478] __free_slab+0xac/0x1a8 [50657.921784] discard_slab+0x70/0xa0 [50657.922092] __slab_free+0x3a0/0x3e8 [50657.922406] kfree+0x484/0x498 [50657.922676] __free_slab+0xac/0x1a8 [50657.922983] discard_slab+0x70/0xa0 [50657.923291] __slab_free+0x3a0/0x3e8 [50657.923605] kfree+0x484/0x498 [50657.923875] __free_slab+0xac/0x1a8 [50657.924182] discard_slab+0x70/0xa0 [50657.924489] unfreeze_partials.isra.96+0x1d0/0x250 [50657.924910] put_cpu_partial+0x18c/0x238 [50657.925254] __slab_free+0x2a4/0x3e8 [50657.925569] kfree+0x484/0x498 [50657.925841] __d_free_external+0x20/0x40 [50657.926189] rcu_core+0x23c/0x858 [50657.926482] rcu_core_si+0x10/0x20 [50657.926781] efi_header_end+0x160/0x3f4 [50657.927120] run_ksoftirqd+0x4c/0x60 [50657.927437] smpboot_thread_fn+0x200/0x238 [50657.927799] kthread+0x140/0x150 [50657.928085] ret_from_fork+0x10/0x34 [50657.928406] SMP: stopping secondary CPUs [50657.928767] Kernel Offset: disabled [50657.929076] CPU features: 0x0240022,2000200c [50657.929451] Memory Limit: none [50657.929730] ---[ end Kernel panic - not syncing: kernel stack overflow ]---  
     
     
     
  2. Like
    silver0480 got a reaction from gprovost in system crashes after sync command   
    Hi.
     
    My helios64 always crashes with this method : 
     
    [environment]
     1TB m.2 sata ssd for system
     16TB seagate exos on data drive
     18TB WD Ultrastar DC550 on data drive
     Linux helios64 5.9.14-rockchip64 #20.11.4 SMP PREEMPT Tue Dec 15 08:52:20 CET 2020 aarch64 aarch64 aarch64 GNU/Linux
     
     about 620,000 files on data drive.
     
     
    [method1]
     #sync
     #sysctl -w vm.drop.caches = 3
     #ls -CFR [datadir] > [tmp dir]
     #ls -1lFR [datadir] > [tmp dir]
     #zip -j [tmpdir] filelist.zip
     #sync >>>>>>> Crash (blinking Red LED)
     
    [method2]
     (First step) via samba , on Windows , see property of all 620,000 files.
     (Second step) on SSH "sysctl -w vm.drop_caches = 3" >>>>>> Crash(blinking Red LED)