It's an upstream bug - i can reproduce it on lundmark (thunderx) with
4.14.26 (latest 4.14 stable release) using the artful .config (make
oldconfig and accept all defaults values - i'll attach the config
below).
It appears it only shows up on ThunderX SOCs (the same test on a
hisilicon d05 worked fine), and the toolchain doesn't matter, it shows
up when the kernel was compiled with the artful or xenial toolchain, no
matter what.
I'm reducing the scope before reporting it upstream.
ubuntu@lundmark:~$ uname -a
Linux lundmark 4.14.26+ #3 SMP Mon Mar 12 15:48:47 UTC 2018 aarch64 aarch64
aarch64 GNU/Linux
ubuntu@lundmark:~$ sudo ./zram_smoke_test.sh
PASSED: zram module loaded
PASSED: got 48 compression streams
PASSED: got lzo lz4 deflate lz4hc 842 compression algorithmns
PASSED: mkfs.ext4 on ZRAM successful
PASSED: ext4 on ZRAM (lzo), memory used: 41945534 4497
PASSED: mkfs.ext4 on ZRAM successful
PASSED: ext4 on ZRAM (lz4), memory used: 41945256 4006
[from the serial console]
dmesg:
...
[ 289.708789] zram: Added device: zram0
[ 291.743271] zram0: detected capacity change from 0 to 134217728
[ 291.909193] EXT4-fs (zram0): mounted filesystem with ordered data mode.
Opts: (null)
[ 295.177609] zram0: detected capacity change from 134217728 to 0
[ 296.291895] zram0: detected capacity change from 0 to 134217728
[ 296.394257] EXT4-fs (zram0): mounted filesystem with ordered data mode.
Opts: (null)
[ 299.602110] zram0: detected capacity change from 134217728 to 0
[ 300.606078] zram0: detected capacity change from 0 to 134217728
[ 327.694207] watchdog: BUG: soft lockup - CPU#25 stuck for 23s!
[mkfs.ext4:2016]
[ 327.701593] Modules linked in: lz4 lz4_compress zram nicvf nicpf
nls_iso8859_1 ast ttm thunder_bgx drm_kms_helper thunder_xcv thunderx_mmc
mdio_thund
er mdio_cavium drm fb_sys_fops syscopyarea sysfillrect sysimgblt i2c_thunderx
i2c_smbus i2c_algo_bit thunderx_edac thunderx_zip cavium_rng_vf shpchp cav
ium_rng aes_ce_blk crypto_simd cryptd aes_ce_cipher crc32_ce crct10dif_ce
ghash_ce ipmi_ssif aes_arm64 ipmi_devintf gpio_keys sha2_ce sha256_arm64 sha1_
ce ipmi_msghandler uio_pdrv_genirq uio ib_iser rdma_cm iw_cm ib_cm ib_core
iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autof
s4
[ 327.701693] CPU: 25 PID: 2016 Comm: mkfs.ext4 Not tainted 4.14.26+ #3
[ 327.701695] Hardware name: Cavium ThunderX CRB/To be filled by O.E.M., BIOS
5.11 12/12/2012
[ 327.701698] task: ffff801f56dc0f00 task.stack: ffff000012768000
[ 327.701711] PC is at zip_deflate+0x180/0x2e8 [thunderx_zip]
[ 327.701717] LR is at zip_deflate+0x17c/0x2e8 [thunderx_zip]
[ 327.701720] pc : [<ffff000002031618>] lr : [<ffff000002031614>] pstate:
20400145
[ 327.701721] sp : ffff00001276b570
[ 327.701723] x29: ffff00001276b570 x28: 0000000000000000
[ 327.701728] x27: ffff801f27f2ec00 x26: 0000000000000000
[ 327.701733] x25: ffff801f58b5c000 x24: ffff801f6f72ac18
[ 327.701738] x23: 0000000000001000 x22: ffff00001276b678
[ 327.701743] x21: ffff801f59214880 x20: ffff801f6f72ac18
[ 327.701748] x19: ffff00001276b5f8 x18: 0000000000000000
[ 327.701752] x17: 0000000000000001 x16: 0000000000000000
[ 327.701757] x15: 0000aaab222018db x14: 00000000fb570000
[ 327.701762] x13: 0000100000000000 x12: 00000000fb560000
[ 327.701766] x11: 0000000000000000 x10: 0000000000000000
[ 327.701771] x9 : 0000000000000000 x8 : 0000000000000000
[ 327.701775] x7 : 0000000000000000 x6 : ffff8000101d8080
[ 327.701780] x5 : ffff000002031058 x4 : 0000000000000008
[ 327.701785] x3 : 0000000000000000 x2 : 0000000000000001
[ 327.701789] x1 : ffff801f6f72ae08 x0 : 0000000000000000
[ 327.701794] Call trace:
[ 327.701798] Exception stack(0xffff00001276b430 to 0xffff00001276b570)
[151/9460]
[ 327.701801] b420: 0000000000000000
ffff801f6f72ae08
[ 327.701805] b440: 0000000000000001 0000000000000000 0000000000000008
ffff000002031058
[ 327.701809] b460: ffff8000101d8080 0000000000000000 0000000000000000
0000000000000000
[ 327.701812] b480: 0000000000000000 0000000000000000 00000000fb560000
0000100000000000
[ 327.701816] b4a0: 00000000fb570000 0000aaab222018db 0000000000000000
0000000000000001
[ 327.701820] b4c0: 0000000000000000 ffff00001276b5f8 ffff801f6f72ac18
ffff801f59214880
[ 327.701823] b4e0: ffff00001276b678 0000000000001000 ffff801f6f72ac18
ffff801f58b5c000
[ 327.701827] b500: 0000000000000000 ffff801f27f2ec00 0000000000000000
ffff00001276b570
[ 327.701831] b520: ffff000002031614 ffff00001276b570 ffff000002031618
0000000020400145
[ 327.701834] b540: ffff801f59214880 ffff00001276b678 0000ffffffffffff
ffff801f6f72ac18
[ 327.701837] b560: ffff00001276b570 ffff000002031618
[ 327.701844] [<ffff000002031618>] zip_deflate+0x180/0x2e8 [thunderx_zip]
[ 327.701850] [<ffff000002030db0>] zip_compress+0xd8/0x158 [thunderx_zip]
[ 327.701856] [<ffff0000020310a0>] zip_comp_compress+0x48/0x60 [thunderx_zip]
[ 327.701863] [<ffff0000084ab330>] crypto_compress+0x50/0x68
[ 327.701874] [<ffff0000025a9298>] zcomp_compress+0x48/0x58 [zram]
[ 327.701880] [<ffff0000025aaad0>] zram_bvec_rw.isra.22+0x1d8/0x618 [zram]
[ 327.701887] [<ffff0000025ab164>] zram_make_request+0x13c/0x358 [zram]
[ 327.701893] [<ffff0000084d912c>] generic_make_request+0xf4/0x288
[ 327.701896] [<ffff0000084d931c>] submit_bio+0x5c/0x198
[ 327.701901] [<ffff000008319534>] submit_bh_wbc+0x17c/0x1d0
[ 327.701904] [<ffff0000083197b4>] __block_write_full_page+0x22c/0x3d0
[ 327.701907] [<ffff000008319b5c>] block_write_full_page+0x10c/0x120
[ 327.701910] [<ffff00000831d218>] blkdev_writepage+0x30/0x40
[ 327.701915] [<ffff00000823c9b0>] __writepage+0x38/0x88
[ 327.701918] [<ffff00000823d29c>] write_cache_pages+0x1f4/0x4d0
[ 327.701921] [<ffff00000823ee84>] generic_writepages+0x64/0xa0
[ 327.701924] [<ffff00000831d188>] blkdev_writepages+0x38/0x60
[ 327.701927] [<ffff00000823fa94>] do_writepages+0x5c/0x108
[ 327.701933] [<ffff00000822f284>] __filemap_fdatawrite_range+0xec/0x128
[ 327.701936] [<ffff00000822f53c>] file_write_and_wait_range+0x74/0xd8
[ 327.701939] [<ffff00000831c3b4>] blkdev_fsync+0x3c/0x70
[ 327.701945] [<ffff00000831337c>] vfs_fsync_range+0x64/0xc0
[ 327.701948] [<ffff000008313460>] do_fsync+0x48/0x78
[ 327.701951] [<ffff00000831376c>] SyS_fsync+0x24/0x38
[ 327.701954] Exception stack(0xffff00001276bec0 to 0xffff00001276c000)
[ 327.701957] bec0: 0000000000000003 0000000000000000 0000000000001000
0000000000001000
[ 327.701961] bee0: 0000000000000000 0000aaab222018d4 0000000000000000
0000000067645f80
[ 327.701964] bf00: 0000000000000052 00000000000003f8 0000000000000400
0000000000000800
[ 327.701968] bf20: 0000000000000c00 0000000000001000 0000000000001c00
0000aaab222018db
[ 327.701972] bf40: 0000ffff870b5c98 0000ffff86f40b58 0000000000000000
0000000000000000
[ 327.701975] bf60: 0000aaab221fd1d0 0000000000000000 0000000000000000
0000aaab22200f70
[ 327.701979] bf80: 0000ffffc2be70a0 0000aaab222014e0 0000aaab22200f70
0000000000000000
[ 327.701982] bfa0: 0000aaab22200f70 0000ffffc2be6e90 0000ffff8709b0a4
0000ffffc2be6e90
[ 327.701986] bfc0: 0000ffff86f40b7c 0000000060000000 0000000000000003
0000000000000052
[ 327.701990] bfe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 327.701994] [<ffff000008084400>] el0_svc_naked+0x34/0x38
[ 355.685032] watchdog: BUG: soft lockup - CPU#8 stuck for 23s!
[kworker/u96:3:411]
[ 355.692587] Modules linked in: lz4 lz4_compress zram nicvf nicpf
nls_iso8859_1 ast ttm thunder_bgx drm_kms_helper thunder_xcv thunderx_mmc
mdio_thund
er mdio_cavium drm fb_sys_fops syscopyarea sysfillrect sysimgblt i2c_thunderx
i2c_smbus i2c_algo_bit thunderx_edac thunderx_zip cavium_rng_vf shpchp cav
ium_rng aes_ce_blk crypto_simd cryptd aes_ce_cipher crc32_ce crct10dif_ce
ghash_ce ipmi_ssif aes_arm64 ipmi_devintf gpio_keys sha2_ce sha256_arm64 sha1_
ce ipmi_msghandler uio_pdrv_genirq uio ib_iser rdma_cm iw_cm ib_cm ib_core
iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autof
s4
[ 355.692678] CPU: 8 PID: 411 Comm: kworker/u96:3 Tainted: G L
4.14.26+ #3
[ 355.692680] Hardware name: Cavium ThunderX CRB/To be filled by O.E.M., BIOS
5.11 12/12/2012
[ 355.692687] Workqueue: writeback wb_workfn (flush-252:0)
[ 355.692693] task: ffff801f27cf0000 task.stack: ffff000012268000
[ 355.692701] PC is at zip_deflate+0x180/0x2e8 [thunderx_zip]
[ 355.692706] LR is at zip_deflate+0x17c/0x2e8 [thunderx_zip]
[ 355.692709] pc : [<ffff000002031618>] lr : [<ffff000002031614>] pstate:
20400145
[ 355.692711] sp : ffff00001226b320
[ 355.692713] x29: ffff00001226b320 x28: 0000000000000000
[89/9460]
[ 355.692718] x27: ffff801f27f2ec00 x26: 0000000000000000
[ 355.692723] x25: ffff801f576c2000 x24: ffff801f6f72ac18
[ 355.692728] x23: 0000000000001000 x22: ffff00001226b428
[ 355.692733] x21: ffff801f71861c80 x20: ffff801f6f72ac18
[ 355.692737] x19: ffff00001226b3a8 x18: 0000000000000140
[ 355.692742] x17: 0000000000000002 x16: 0000000000000000
[ 355.692747] x15: 0000000000000012 x14: 00000000fb930000
[ 355.692752] x13: 0000100000000000 x12: 00000000fb920000
[ 355.692757] x11: 0000000000000000 x10: 0000000000000000
[ 355.692762] x9 : 0000000000000000 x8 : 0000000000000000
[ 355.692766] x7 : 0000000000000000 x6 : ffff8000101d6080
[ 355.692771] x5 : ffff000002031058 x4 : 0000000000000008
[ 355.692776] x3 : 0000000000000000 x2 : 0000000000000000
[ 355.692781] x1 : ffff801f6f72ae08 x0 : 0000000000000000
[ 355.692786] Call trace:
[ 355.692789] Exception stack(0xffff00001226b1e0 to 0xffff00001226b320)
[ 355.692793] b1e0: 0000000000000000 ffff801f6f72ae08 0000000000000000
0000000000000000
[ 355.692796] b200: 0000000000000008 ffff000002031058 ffff8000101d6080
0000000000000000
[ 355.692800] b220: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 355.692803] b240: 00000000fb920000 0000100000000000 00000000fb930000
0000000000000012
[ 355.692807] b260: 0000000000000000 0000000000000002 0000000000000140
ffff00001226b3a8
[ 355.692811] b280: ffff801f6f72ac18 ffff801f71861c80 ffff00001226b428
0000000000001000
[ 355.692814] b2a0: ffff801f6f72ac18 ffff801f576c2000 0000000000000000
ffff801f27f2ec00
[ 355.692818] b2c0: 0000000000000000 ffff00001226b320 ffff000002031614
ffff00001226b320
[ 355.692822] b2e0: ffff000002031618 0000000020400145 ffff801f71861c80
ffff00001226b428
[ 355.692825] b300: ffffffffffffffff ffff801f6f72ac18 ffff00001226b320
ffff000002031618
[ 355.692832] [<ffff000002031618>] zip_deflate+0x180/0x2e8 [thunderx_zip]
[62/9460]
[ 355.692838] [<ffff000002030db0>] zip_compress+0xd8/0x158 [thunderx_zip]
[ 355.692844] [<ffff0000020310a0>] zip_comp_compress+0x48/0x60 [thunderx_zip]
[ 355.692847] [<ffff0000084ab330>] crypto_compress+0x50/0x68
[ 355.692855] [<ffff0000025a9298>] zcomp_compress+0x48/0x58 [zram]
[ 355.692861] [<ffff0000025aaad0>] zram_bvec_rw.isra.22+0x1d8/0x618 [zram]
[ 355.692867] [<ffff0000025ab164>] zram_make_request+0x13c/0x358 [zram]
[ 355.692871] [<ffff0000084d912c>] generic_make_request+0xf4/0x288
[ 355.692874] [<ffff0000084d931c>] submit_bio+0x5c/0x198
[ 355.692878] [<ffff000008319534>] submit_bh_wbc+0x17c/0x1d0
[ 355.692881] [<ffff0000083197b4>] __block_write_full_page+0x22c/0x3d0
[ 355.692884] [<ffff000008319b5c>] block_write_full_page+0x10c/0x120
[ 355.692887] [<ffff00000831d218>] blkdev_writepage+0x30/0x40
[ 355.692890] [<ffff00000823c9b0>] __writepage+0x38/0x88
[ 355.692894] [<ffff00000823d29c>] write_cache_pages+0x1f4/0x4d0
[ 355.692897] [<ffff00000823ee84>] generic_writepages+0x64/0xa0
[ 355.692900] [<ffff00000831d188>] blkdev_writepages+0x38/0x60
[ 355.692903] [<ffff00000823fa94>] do_writepages+0x5c/0x108
[ 355.692906] [<ffff00000830d6b8>] __writeback_single_inode+0x48/0x3f8
[ 355.692909] [<ffff00000830dee0>] writeback_sb_inodes+0x1c0/0x460
[ 355.692912] [<ffff00000830e1f8>] __writeback_inodes_wb+0x78/0xc8
[ 355.692916] [<ffff00000830e544>] wb_writeback+0x224/0x350
[ 355.692919] [<ffff00000830efdc>] wb_workfn+0x1c4/0x400
[ 355.692924] [<ffff0000080fe430>] process_one_work+0x1e0/0x420
[ 355.692927] [<ffff0000080fe6bc>] worker_thread+0x4c/0x478
[ 355.692931] [<ffff0000081055f0>] kthread+0x138/0x140
[ 355.692935] [<ffff000008085ccc>] ret_from_fork+0x10/0x1c
[ 360.624822] INFO: rcu_sched self-detected stall on CPU
[ 360.628822] INFO: rcu_sched detected stalls on CPUs/tasks:
[ 360.628830] 25-...: (14999 ticks this GP) idle=ef2/140000000000001/0
softirq=921/921 fqs=6941
[ 360.628832] (detected by 17, t=15002 jiffies, g=2154, c=2153, q=5028)
[ 360.628840] Task dump for CPU 25:
[ 360.628843] mkfs.ext4 R running task 0 2016 1930 0x00000022
[ 360.628847] Call trace:
[ 360.628853] [<ffff000008086cac>] __switch_to+0x94/0xd8
[28/9460]
[ 360.628855] [<ffff801f269d7950>] 0xffff801f269d7950
[ 360.650900] 25-...: (14999 ticks this GP) idle=ef2/140000000000001/0
softirq=921/921 fqs=6945
[ 360.659675] (t=15009 jiffies g=2154 c=2153 q=5028)
[ 360.664687] Task dump for CPU 25:
[ 360.664689] mkfs.ext4 R running task 0 2016 1930 0x00000022
[ 360.664694] Call trace:
[ 360.664700] [<ffff00000808d628>] dump_backtrace+0x0/0x238
[ 360.664704] [<ffff00000808d884>] show_stack+0x24/0x30
[ 360.664709] [<ffff0000081154c4>] sched_show_task+0x134/0x158
[ 360.664713] [<ffff000008116a40>] dump_cpu_task+0x48/0x58
[ 360.664717] [<ffff0000081597a0>] rcu_dump_cpu_stacks+0x9c/0xdc
[ 360.664720] [<ffff000008158dc8>] rcu_check_callbacks+0x680/0x8a8
[ 360.664725] [<ffff0000081605fc>] update_process_times+0x34/0x60
[ 360.664729] [<ffff0000081726b4>] tick_sched_handle.isra.5+0x34/0x70
[ 360.664732] [<ffff000008172738>] tick_sched_timer+0x48/0x98
[ 360.664735] [<ffff000008160f4c>] __hrtimer_run_queues+0xe4/0x2c0
[ 360.664739] [<ffff000008161ae8>] hrtimer_interrupt+0xa8/0x230
[ 360.664743] [<ffff000008909bb8>] arch_timer_handler_phys+0x38/0x58
[ 360.664749] [<ffff000008149f38>] handle_percpu_devid_irq+0x90/0x260
[ 360.664752] [<ffff000008143bbc>] generic_handle_irq+0x34/0x50
[ 360.664755] [<ffff0000081442b8>] __handle_domain_irq+0x68/0xc0
[ 360.664758] [<ffff000008081c0c>] gic_handle_irq+0x84/0x188
[ 360.664760] Exception stack(0xffff00001276b430 to 0xffff00001276b570)
[ 360.664763] b420: 0000000000000000
ffff801f6f72ae08
[ 360.664767] b440: 0000000000000001 0000000000000000 0000000000000008
ffff000002031058
[ 360.664770] b460: ffff8000101d8080 0000000000000000 0000000000000000
0000000000000000
[ 360.664774] b480: 0000000000000000 0000000000000000 00000000fb560000
0000100000000000
[ 360.664778] b4a0: 00000000fb570000 0000aaab222018db 0000000000000000
0000000000000001
[ 360.664781] b4c0: 0000000000000000 ffff00001276b5f8 ffff801f6f72ac18
ffff801f59214880
[ 360.664785] b4e0: ffff00001276b678 0000000000001000 ffff801f6f72ac18
ffff801f58b5c000
[ 360.664789] b500: 0000000000000000 ffff801f27f2ec00 0000000000000000
ffff00001276b570
[ 360.664792] b520: ffff000002031614 ffff00001276b570 ffff00000203161c
0000000020400145
[ 360.664796] b540: ffff801f59214880 ffff00001276b678 0000ffffffffffff
ffff801f6f72ac18
[ 360.664799] b560: ffff00001276b570 ffff00000203161c
[ 360.664802] [<ffff000008083ba8>] el1_irq+0xe8/0x180
[ 360.664809] [<ffff00000203161c>] zip_deflate+0x184/0x2e8 [thunderx_zip]
[ 360.664815] [<ffff000002030db0>] zip_compress+0xd8/0x158 [thunderx_zip]
[ 360.664821] [<ffff0000020310a0>] zip_comp_compress+0x48/0x60 [thunderx_zip]
[ 360.664824] [<ffff0000084ab330>] crypto_compress+0x50/0x68
[ 360.664832] [<ffff0000025a9298>] zcomp_compress+0x48/0x58 [zram]
[ 360.664838] [<ffff0000025aaad0>] zram_bvec_rw.isra.22+0x1d8/0x618 [zram]
[ 360.664844] [<ffff0000025ab164>] zram_make_request+0x13c/0x358 [zram]
[ 360.664848] [<ffff0000084d912c>] generic_make_request+0xf4/0x288
[ 360.664851] [<ffff0000084d931c>] submit_bio+0x5c/0x198
[ 360.664854] [<ffff000008319534>] submit_bh_wbc+0x17c/0x1d0
[ 360.664857] [<ffff0000083197b4>] __block_write_full_page+0x22c/0x3d0
[ 360.664860] [<ffff000008319b5c>] block_write_full_page+0x10c/0x120
[ 360.664863] [<ffff00000831d218>] blkdev_writepage+0x30/0x40
[ 360.664867] [<ffff00000823c9b0>] __writepage+0x38/0x88
[ 360.664870] [<ffff00000823d29c>] write_cache_pages+0x1f4/0x4d0
[ 360.664873] [<ffff00000823ee84>] generic_writepages+0x64/0xa0
[ 360.664876] [<ffff00000831d188>] blkdev_writepages+0x38/0x60
[ 360.664879] [<ffff00000823fa94>] do_writepages+0x5c/0x108
[ 360.664882] [<ffff00000822f284>] __filemap_fdatawrite_range+0xec/0x128
[ 360.664886] [<ffff00000822f53c>] file_write_and_wait_range+0x74/0xd8
[ 360.664889] [<ffff00000831c3b4>] blkdev_fsync+0x3c/0x70
[ 360.664892] [<ffff00000831337c>] vfs_fsync_range+0x64/0xc0
[ 360.664895] [<ffff000008313460>] do_fsync+0x48/0x78
[ 360.664898] [<ffff00000831376c>] SyS_fsync+0x24/0x38
[ 360.664901] Exception stack(0xffff00001276bec0 to 0xffff00001276c000)
[ 360.664904] bec0: 0000000000000003 0000000000000000 0000000000001000
0000000000001000
[ 360.664908] bee0: 0000000000000000 0000aaab222018d4 0000000000000000
0000000067645f80
[ 360.664911] bf00: 0000000000000052 00000000000003f8 0000000000000400
0000000000000800
[ 360.664915] bf20: 0000000000000c00 0000000000001000 0000000000001c00
0000aaab222018db
[ 360.664919] bf40: 0000ffff870b5c98 0000ffff86f40b58 0000000000000000
0000000000000000
[ 360.664922] bf60: 0000aaab221fd1d0 0000000000000000 0000000000000000
0000aaab22200f70
[ 360.664926] bf80: 0000ffffc2be70a0 0000aaab222014e0 0000aaab22200f70
0000000000000000
[ 360.664929] bfa0: 0000aaab22200f70 0000ffffc2be6e90 0000ffff8709b0a4
0000ffffc2be6e90
[ 360.664933] bfc0: 0000ffff86f40b7c 0000000060000000 0000000000000003
0000000000000052
[ 360.664936] bfe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 360.664940] [<ffff000008084400>] el0_svc_naked+0x34/0x38
--
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1755073
Title:
ubuntu_zram_smoke test will cause soft lockup on Artful ARM64 kernel
Status in linux package in Ubuntu:
Confirmed
Bug description:
This is a POTENTIAL REGRESSION.
This test has passed with 4.13.0-36.40, but not 4.13.0-37.42
The test will stuck with error message in dmesg:
ubuntu@starmie-kernel:~$ dmesg
[ 470.227210] zram: Added device: zram0
[ 472.262544] zram0: detected capacity change from 0 to 134217728
[ 472.396960] EXT4-fs (zram0): mounted filesystem with ordered data mode.
Opts: (null)
[ 475.761947] zram0: detected capacity change from 134217728 to 0
[ 476.796641] zram0: detected capacity change from 0 to 134217728
[ 476.909118] EXT4-fs (zram0): mounted filesystem with ordered data mode.
Opts: (null)
[ 480.233817] zram0: detected capacity change from 134217728 to 0
[ 481.239001] zram0: detected capacity change from 0 to 134217728
[ 508.079684] watchdog: BUG: soft lockup - CPU#8 stuck for 23s!
[mkfs.ext4:2253]
[ 508.086994] Modules linked in: lz4 lz4_compress zram nls_iso8859_1
thunderx_edac i2c_thunderx thunderx_zip i2c_smbus shpchp cavium_rng_vf
cavium_rng gpio_keys ipmi_ssif uio_pdrv_genirq uio ipmi_devintf ipmi_msghandler
ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi
scsi_transport_iscsi ip_tables x_tables autofs4 btrfs raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
libcrc32c raid1 raid0 multipath linear nicvf nicpf ast i2c_algo_bit ttm
drm_kms_helper syscopyarea sysfillrect aes_ce_blk sysimgblt aes_ce_cipher
fb_sys_fops crc32_ce crct10dif_ce drm ghash_ce sha2_ce sha1_ce ahci libahci
thunder_bgx thunder_xcv mdio_thunder thunderx_mmc mdio_cavium aes_neon_bs
aes_neon_blk crypto_simd cryptd
[ 508.087138] CPU: 8 PID: 2253 Comm: mkfs.ext4 Not tainted 4.13.0-37-generic
#42-Ubuntu
[ 508.087141] Hardware name: Cavium ThunderX CRB/To be filled by O.E.M.,
BIOS 5.11 12/12/2012
[ 508.087144] task: ffff801f57a86900 task.stack: ffff000023ec0000
[ 508.087158] PC is at zip_deflate+0x184/0x2e8 [thunderx_zip]
[ 508.087164] LR is at zip_deflate+0x17c/0x2e8 [thunderx_zip]
[ 508.087167] pc : [<ffff000001a6961c>] lr : [<ffff000001a69614>] pstate:
20400145
[ 508.087169] sp : ffff000023ec3580
[ 508.087171] x29: ffff000023ec3580 x28: 0000000000000000
[ 508.087177] x27: ffff801f57a86900 x26: 000000010000b104
[ 508.087182] x25: ffff801f5618c000 x24: ffff801f6a15bc18
[ 508.087188] x23: 0000000000001000 x22: ffff000023ec3688
[ 508.087193] x21: ffff801f5a2d4880 x20: ffff801f6a15bc18
[ 508.087199] x19: ffff000023ec3608 x18: 0000000000000000
[ 508.087204] x17: 0000000000000001 x16: 0000000000000000
[ 508.087209] x15: 0000aaaabd4048db x14: 00000000fa130000
[ 508.087215] x13: 0000100000000000 x12: 00000000fa120000
[ 508.087220] x11: 0000000000000000 x10: 0000000000000000
[ 508.087225] x9 : 0000000000000000 x8 : 0000000000000000
[ 508.087230] x7 : 0000000000000000 x6 : ffff8000101d6080
[ 508.087236] x5 : ffff000001a69058 x4 : 0000000000000008
[ 508.087241] x3 : 0000000000000000 x2 : 0000000000000000
[ 508.087246] x1 : ffff801f6a15be08 x0 : 0000000000000000
[ 508.087252] Call trace:
[ 508.087256] Exception stack(0xffff000023ec3440 to 0xffff000023ec3580)
[ 508.087260] 3440: 0000000000000000 ffff801f6a15be08 0000000000000000
0000000000000000
[ 508.087264] 3460: 0000000000000008 ffff000001a69058 ffff8000101d6080
0000000000000000
[ 508.087268] 3480: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 508.087272] 34a0: 00000000fa120000 0000100000000000 00000000fa130000
0000aaaabd4048db
[ 508.087276] 34c0: 0000000000000000 0000000000000001 0000000000000000
ffff000023ec3608
[ 508.087280] 34e0: ffff801f6a15bc18 ffff801f5a2d4880 ffff000023ec3688
0000000000001000
[ 508.087284] 3500: ffff801f6a15bc18 ffff801f5618c000 000000010000b104
ffff801f57a86900
[ 508.087288] 3520: 0000000000000000 ffff000023ec3580 ffff000001a69614
ffff000023ec3580
[ 508.087292] 3540: ffff000001a6961c 0000000020400145 ffff801f5a2d4880
ffff000023ec3688
[ 508.087297] 3560: 0000ffffffffffff ffff801f6a15bc18 ffff000023ec3580
ffff000001a6961c
[ 508.087304] [<ffff000001a6961c>] zip_deflate+0x184/0x2e8 [thunderx_zip]
[ 508.087311] [<ffff000001a68db0>] zip_compress+0xd8/0x158 [thunderx_zip]
[ 508.087317] [<ffff000001a690a0>] zip_comp_compress+0x48/0x60 [thunderx_zip]
[ 508.087325] [<ffff0000084b1280>] crypto_compress+0x50/0x68
[ 508.087336] [<ffff000001c7a298>] zcomp_compress+0x48/0x58 [zram]
[ 508.087343] [<ffff000001c7bb1c>] zram_bvec_rw.isra.18+0x21c/0x660 [zram]
[ 508.087350] [<ffff000001c7c184>] zram_make_request+0x13c/0x360 [zram]
[ 508.087356] [<ffff0000084dea94>] generic_make_request+0xf4/0x290
[ 508.087360] [<ffff0000084dec8c>] submit_bio+0x5c/0x198
[ 508.087367] [<ffff000008311944>] submit_bh_wbc+0x14c/0x1a0
[ 508.087371] [<ffff000008311bb4>] __block_write_full_page+0x21c/0x3b0
[ 508.087375] [<ffff000008311f4c>] block_write_full_page+0x10c/0x120
[ 508.087379] [<ffff0000083155e0>] blkdev_writepage+0x30/0x40
[ 508.087383] [<ffff000008237520>] __writepage+0x38/0x88
[ 508.087386] [<ffff000008237ddc>] write_cache_pages+0x1c4/0x490
[ 508.087389] [<ffff000008239a34>] generic_writepages+0x64/0xa0
[ 508.087392] [<ffff000008315550>] blkdev_writepages+0x38/0x60
[ 508.087395] [<ffff00000823a644>] do_writepages+0x5c/0x108
[ 508.087400] [<ffff000008229d9c>] __filemap_fdatawrite_range+0xec/0x128
[ 508.087404] [<ffff00000822a5a8>] file_write_and_wait_range+0x58/0xe8
[ 508.087407] [<ffff0000083147e4>] blkdev_fsync+0x3c/0x70
[ 508.087410] [<ffff00000830b77c>] vfs_fsync_range+0x64/0xc0
[ 508.087413] [<ffff00000830b860>] do_fsync+0x48/0x78
[ 508.087417] [<ffff00000830bb24>] SyS_fsync+0x24/0x38
[ 508.087419] Exception stack(0xffff000023ec3ec0 to 0xffff000023ec4000)
[ 508.087423] 3ec0: 0000000000000008 0000000000000000 0000000000001000
0000000000001000
[ 508.087427] 3ee0: 0000000000000000 0000aaaabd4048d4 0000000000000000
000000001862beef
[ 508.087431] 3f00: 0000000000000052 00000000000003f8 0000000000000400
0000000000000800
[ 508.087435] 3f20: 0000000000000c00 0000000000001000 0000000000001c00
0000aaaabd4048db
[ 508.087439] 3f40: 0000ffffa72c4c98 0000ffffa714fb58 0000000000000000
0000000000000000
[ 508.087443] 3f60: 0000aaaabd4001d0 0000000000000000 0000000000000000
0000aaaabd403f70
[ 508.087447] 3f80: 0000ffffecf836c0 0000aaaabd4044e0 0000aaaabd403f70
0000000000000000
[ 508.087451] 3fa0: 0000aaaabd403f70 0000ffffecf834b0 0000ffffa72aa0a4
0000ffffecf834b0
[ 508.087455] 3fc0: 0000ffffa714fb7c 0000000060000000 0000000000000008
0000000000000052
[ 508.087458] 3fe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 508.087463] [<ffff000008083c00>] el0_svc_naked+0x34/0x38
[ 528.074307] watchdog: BUG: soft lockup - CPU#2 stuck for 22s!
[kworker/u96:3:512]
[ 528.081877] Modules linked in: lz4 lz4_compress zram nls_iso8859_1
thunderx_edac i2c_thunderx thunderx_zip i2c_smbus shpchp cavium_rng_vf
cavium_rng gpio_keys ipmi_ssif uio_pdrv_genirq uio ipmi_devintf ipmi_msghandler
ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi
scsi_transport_iscsi ip_tables x_tables autofs4 btrfs raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
libcrc32c raid1 raid0 multipath linear nicvf nicpf ast i2c_algo_bit ttm
drm_kms_helper syscopyarea sysfillrect aes_ce_blk sysimgblt aes_ce_cipher
fb_sys_fops crc32_ce crct10dif_ce drm ghash_ce sha2_ce sha1_ce ahci libahci
thunder_bgx thunder_xcv mdio_thunder thunderx_mmc mdio_cavium aes_neon_bs
aes_neon_blk crypto_simd cryptd
[ 528.082019] CPU: 2 PID: 512 Comm: kworker/u96:3 Tainted: G L
4.13.0-37-generic #42-Ubuntu
[ 528.082021] Hardware name: Cavium ThunderX CRB/To be filled by O.E.M.,
BIOS 5.11 12/12/2012
[ 528.082033] Workqueue: writeback wb_workfn (flush-252:0)
[ 528.082039] task: ffff801f27b58000 task.stack: ffff000013b00000
[ 528.082052] PC is at zip_deflate+0x180/0x2e8 [thunderx_zip]
[ 528.082059] LR is at zip_deflate+0x17c/0x2e8 [thunderx_zip]
[ 528.082062] pc : [<ffff000001a69618>] lr : [<ffff000001a69614>] pstate:
20400145
[ 528.082064] sp : ffff000013b03330
[ 528.082066] x29: ffff000013b03330 x28: 0000000000000000
[ 528.082071] x27: ffff801f27b58000 x26: 000000010000c700
[ 528.082077] x25: ffff801f57e04000 x24: ffff801f6a15bc18
[ 528.082082] x23: 0000000000001000 x22: ffff000013b03438
[ 528.082087] x21: ffff801f5a2d5880 x20: ffff801f6a15bc18
[ 528.082093] x19: ffff000013b033b8 x18: 0000000000000009
[ 528.082098] x17: 0000000000000002 x16: 0000000000000000
[ 528.082103] x15: 0000000000000001 x14: 0000000000db0000
[ 528.082108] x13: 0000100000000000 x12: 0000000000da0000
[ 528.082113] x11: 0000000000000000 x10: 0000000000000000
[ 528.082119] x9 : 0000000000000000 x8 : 0000000000000000
[ 528.082124] x7 : 0000000000000000 x6 : ffff8000101d6100
[ 528.082129] x5 : ffff000001a69058 x4 : 0000000000000008
[ 528.082134] x3 : 0000000000000000 x2 : 0000000000000000
[ 528.082139] x1 : ffff801f6a15be08 x0 : 0000000000000000
[ 528.082145] Call trace:
[ 528.082149] Exception stack(0xffff000013b031f0 to 0xffff000013b03330)
[ 528.082152] 31e0: 0000000000000000
ffff801f6a15be08
[ 528.082156] 3200: 0000000000000000 0000000000000000 0000000000000008
ffff000001a69058
[ 528.082160] 3220: ffff8000101d6100 0000000000000000 0000000000000000
0000000000000000
[ 528.082164] 3240: 0000000000000000 0000000000000000 0000000000da0000
0000100000000000
[ 528.082167] 3260: 0000000000db0000 0000000000000001 0000000000000000
0000000000000002
[ 528.082171] 3280: 0000000000000009 ffff000013b033b8 ffff801f6a15bc18
ffff801f5a2d5880
[ 528.082175] 32a0: ffff000013b03438 0000000000001000 ffff801f6a15bc18
ffff801f57e04000
[ 528.082179] 32c0: 000000010000c700 ffff801f27b58000 0000000000000000
ffff000013b03330
[ 528.082183] 32e0: ffff000001a69614 ffff000013b03330 ffff000001a69618
0000000020400145
[ 528.082187] 3300: ffff801f5a2d5880 ffff000013b03438 ffffffffffffffff
ffff801f6a15bc18
[ 528.082190] 3320: ffff000013b03330 ffff000001a69618
[ 528.082197] [<ffff000001a69618>] zip_deflate+0x180/0x2e8 [thunderx_zip]
[ 528.082204] [<ffff000001a68db0>] zip_compress+0xd8/0x158 [thunderx_zip]
[ 528.082210] [<ffff000001a690a0>] zip_comp_compress+0x48/0x60 [thunderx_zip]
[ 528.082216] [<ffff0000084b1280>] crypto_compress+0x50/0x68
[ 528.082228] [<ffff000001c7a298>] zcomp_compress+0x48/0x58 [zram]
[ 528.082236] [<ffff000001c7bb1c>] zram_bvec_rw.isra.18+0x21c/0x660 [zram]
[ 528.082242] [<ffff000001c7c184>] zram_make_request+0x13c/0x360 [zram]
[ 528.082248] [<ffff0000084dea94>] generic_make_request+0xf4/0x290
[ 528.082252] [<ffff0000084dec8c>] submit_bio+0x5c/0x198
[ 528.082258] [<ffff000008311944>] submit_bh_wbc+0x14c/0x1a0
[ 528.082262] [<ffff000008311bb4>] __block_write_full_page+0x21c/0x3b0
[ 528.082266] [<ffff000008311f4c>] block_write_full_page+0x10c/0x120
[ 528.082270] [<ffff0000083155e0>] blkdev_writepage+0x30/0x40
[ 528.082274] [<ffff000008237520>] __writepage+0x38/0x88
[ 528.082277] [<ffff000008237ddc>] write_cache_pages+0x1c4/0x490
[ 528.082280] [<ffff000008239a34>] generic_writepages+0x64/0xa0
[ 528.082283] [<ffff000008315550>] blkdev_writepages+0x38/0x60
[ 528.082286] [<ffff00000823a644>] do_writepages+0x5c/0x108
[ 528.082290] [<ffff000008305938>] __writeback_single_inode+0x48/0x3f0
[ 528.082293] [<ffff000008306158>] writeback_sb_inodes+0x1c0/0x460
[ 528.082296] [<ffff000008306470>] __writeback_inodes_wb+0x78/0xc8
[ 528.082299] [<ffff0000083067bc>] wb_writeback+0x224/0x350
[ 528.082302] [<ffff000008307254>] wb_workfn+0x1c4/0x400
[ 528.082308] [<ffff0000080fe5e8>] process_one_work+0x1e0/0x420
[ 528.082312] [<ffff0000080fe874>] worker_thread+0x4c/0x478
[ 528.082316] [<ffff000008105848>] kthread+0x138/0x140
[ 528.082321] [<ffff0000080854f0>] ret_from_fork+0x10/0x18
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-37-generic 4.13.0-37.42
ProcVersionSignature: User Name 4.13.0-37.42-generic 4.13.13
Uname: Linux 4.13.0-37-generic aarch64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Mar 12 03:13 seq
crw-rw---- 1 root audio 116, 33 Mar 12 03:13 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Mon Mar 12 03:22:24 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
MachineType: Cavium ThunderX CRB
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB:
0 EFI VGA
1 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-37-generic
root=UUID=c5160401-c147-4329-9683-b946ce7d0d37 ro
RelatedPackageVersions:
linux-restricted-modules-4.13.0-37-generic N/A
linux-backports-modules-4.13.0-37-generic N/A
linux-firmware 1.169.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/12/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.11
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: To be filled by O.E.M.
dmi.board.vendor: To be filled by O.E.M.
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 0
dmi.chassis.vendor: Cavium
dmi.chassis.version: To be filled by O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr5.11:bd12/12/2012:svnCavium:pnThunderXCRB:pvrTobefilledbyO.E.M.:rvnTobefilledbyO.E.M.:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnCavium:ct0:cvrTobefilledbyO.E.M.:
dmi.product.family: Default string
dmi.product.name: ThunderX CRB
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Cavium
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