Public bug reported:
syslog extract:
May 15 00:38:28 rpi4 kernel: [ 1464.345380] kernel BUG at
/build/linux-raspi2-5.3-5IVhed/linux-raspi2-5.3-5.3.0/fs/btrfs/relocation.c:4729!
May 15 00:38:28 rpi4 kernel: [ 1464.355281] Internal error: Oops - BUG: 0 [#1]
SMP
May 15 00:38:28 rpi4 kernel: [ 1464.360141] Modules linked in: xt_nat
iptable_nat dm_crypt nls_ascii algif_skcipher af_alg ip6t_REJECT nf_reject_ipv6
nf_log_ipv6 xt_hl ip6t_rt ipt_REJECT nf_reject_ipv4 xt_comment btsdio
nf_log_ipv4 nf_log_common bluetooth bcm2835_v4l2(CE) xt_LOG ecdh_generic
bcm2835_mmal_vchiq(CE) ecc vc_sm_cma(CE) xt_multiport v4l2_common xt_recent
videobuf2_vmalloc videobuf2_memops brcmfmac videobuf2_v4l2 brcmutil
videobuf2_common cfg80211 videodev xt_limit xt_tcpudp raspberrypi_hwmon mc
xt_addrtype rpivid_mem spidev uio_pdrv_genirq uio xt_conntrack ip6table_filter
ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat
nf_conntrack_ftp nf_conntrack nf_defrag_ipv6 sch_fq_codel nf_defrag_ipv4
iptable_filter bpfilter iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi
ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1
raid0 multipath linear broadcom bcm_phy_lib hid_generic
May 15 00:38:28 rpi4 kernel: [ 1464.360198] usbhid mdio_bcm_unimac
crct10dif_ce sdhci_iproc genet gpio_regulator phy_generic fixed uas usb_storage
aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64
May 15 00:38:28 rpi4 kernel: [ 1464.464074] CPU: 0 PID: 8225 Comm:
btrfs-balance Tainted: G C E 5.3.0-1023-raspi2 #25~18.04.1-Ubuntu
May 15 00:38:28 rpi4 kernel: [ 1464.474482] Hardware name: Raspberry Pi 4 Model
B Rev 1.2 (DT)
May 15 00:38:28 rpi4 kernel: [ 1464.480395] pstate: 20400005 (nzCv daif +PAN
-UAO)
May 15 00:38:28 rpi4 kernel: [ 1464.485330] pc :
btrfs_reloc_cow_block+0x34c/0x3a0 [btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.490928] lr : __btrfs_cow_block+0x368/0x600
[btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.496133] sp : ffff000013b437b0
May 15 00:38:28 rpi4 kernel: [ 1464.499487] x29: ffff000013b437b0 x28:
0000000000000000
May 15 00:38:28 rpi4 kernel: [ 1464.504870] x27: 0000000000000001 x26:
0000000000000001
May 15 00:38:28 rpi4 kernel: [ 1464.510253] x25: ffff9c0ac32c4a80 x24:
ffff9c0bb321c618
May 15 00:38:28 rpi4 kernel: [ 1464.515634] x23: 0000000000000001 x22:
ffff9c0b63242a50
May 15 00:38:28 rpi4 kernel: [ 1464.521016] x21: ffff9c0b23e51ef0 x20:
ffff9c0b4f111000
May 15 00:38:28 rpi4 kernel: [ 1464.526399] x19: ffff9c0b74bb5000 x18:
0000000000000000
May 15 00:38:28 rpi4 kernel: [ 1464.531780] x17: 0000000000000000 x16:
ffff40af26f8be78
May 15 00:38:28 rpi4 kernel: [ 1464.537163] x15: 0000000000000000 x14:
0000000000000000
May 15 00:38:28 rpi4 kernel: [ 1464.542545] x13: 0000000000000000 x12:
0000000000000000
May 15 00:38:28 rpi4 kernel: [ 1464.547926] x11: 0000000000000000 x10:
ffff9c0b10e83a40
May 15 00:38:28 rpi4 kernel: [ 1464.553308] x9 : ffff9c0aca004750 x8 :
ffff40af2775b9e7
May 15 00:38:28 rpi4 kernel: [ 1464.558690] x7 : ffff9c0b578814e1 x6 :
ffff9c0b578814e0
May 15 00:38:28 rpi4 kernel: [ 1464.564071] x5 : ffff9c0b552b59c0 x4 :
ffff9c0b552b59c0
May 15 00:38:28 rpi4 kernel: [ 1464.569452] x3 : ffff9c0b63242a50 x2 :
0000000000096be7
May 15 00:38:28 rpi4 kernel: [ 1464.574833] x1 : 0000000000000000 x0 :
0000012e979b4000
May 15 00:38:28 rpi4 kernel: [ 1464.580216] Call trace:
May 15 00:38:28 rpi4 kernel: [ 1464.582735] btrfs_reloc_cow_block+0x34c/0x3a0
[btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.587979] __btrfs_cow_block+0x368/0x600
[btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.592869] btrfs_cow_block+0x100/0x218 [btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.597583] btrfs_search_slot+0x560/0x930
[btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.602475] do_relocation+0x408/0x5b8 [btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.607014] relocate_tree_blocks+0x4f8/0x5c0
[btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.612170] relocate_block_group+0x3dc/0x638
[btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.617325]
btrfs_relocate_block_group+0x18c/0x2d8 [btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.623009] btrfs_relocate_chunk+0x48/0xe0
[btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.627988] __btrfs_balance+0x864/0xa38 [btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.632703] btrfs_balance+0x434/0x748 [btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.637301] balance_kthread+0x38/0x70 [btrfs]
May 15 00:38:28 rpi4 kernel: [ 1464.641811] kthread+0x124/0x128
May 15 00:38:28 rpi4 kernel: [ 1464.645081] ret_from_fork+0x10/0x1c
May 15 00:38:28 rpi4 kernel: [ 1464.648706] Code: f9401321 eb01001f 54fff020
f9002fbc (d4210000)
May 15 00:38:28 rpi4 kernel: [ 1464.654884] ---[ end trace 01ad7c5a4a25131c ]---
May 15 00:38:28 rpi4 kernel: [ 1464.660405] WARNING: CPU: 0 PID: 0 at
/build/linux-raspi2-5.3-5IVhed/linux-raspi2-5.3-5.3.0/kernel/rcu/tree.c:562
rcu_idle_enter+0x70/0x78
May 15 00:38:28 rpi4 kernel: [ 1464.673030] Modules linked in: xt_nat
iptable_nat dm_crypt nls_ascii algif_skcipher af_alg ip6t_REJECT nf_reject_ipv6
nf_log_ipv6 xt_hl ip6t_rt ipt_REJECT nf_reject_ipv4 xt_comment btsdio
nf_log_ipv4 nf_log_common bluetooth bcm2835_v4l2(CE) xt_LOG ecdh_generic
bcm2835_mmal_vchiq(CE) ecc vc_sm_cma(CE) xt_multiport v4l2_common xt_recent
videobuf2_vmalloc videobuf2_memops brcmfmac videobuf2_v4l2 brcmutil
videobuf2_common cfg80211 videodev xt_limit xt_tcpudp raspberrypi_hwmon mc
xt_addrtype rpivid_mem spidev uio_pdrv_genirq uio xt_conntrack ip6table_filter
ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat
nf_conntrack_ftp nf_conntrack nf_defrag_ipv6 sch_fq_codel nf_defrag_ipv4
iptable_filter bpfilter iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi
ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1
raid0 multipath linear broadcom bcm_phy_lib hid_generic
May 15 00:38:28 rpi4 kernel: [ 1464.673092] usbhid mdio_bcm_unimac
crct10dif_ce sdhci_iproc genet gpio_regulator phy_generic fixed uas usb_storage
aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64
May 15 00:38:28 rpi4 kernel: [ 1464.776998] CPU: 0 PID: 0 Comm: swapper/0
Tainted: G D C E 5.3.0-1023-raspi2 #25~18.04.1-Ubuntu
May 15 00:38:28 rpi4 kernel: [ 1464.786799] Hardware name: Raspberry Pi 4 Model
B Rev 1.2 (DT)
May 15 00:38:28 rpi4 kernel: [ 1464.792721] pstate: 20400085 (nzCv daIf +PAN
-UAO)
May 15 00:38:28 rpi4 kernel: [ 1464.797586] pc : rcu_idle_enter+0x70/0x78
May 15 00:38:28 rpi4 kernel: [ 1464.801659] lr : do_idle+0x1d4/0x2c0
May 15 00:38:28 rpi4 kernel: [ 1464.805284] sp : ffff40af27c03ec0
May 15 00:38:28 rpi4 kernel: [ 1464.808646] x29: ffff40af27c03ec0 x28:
0000000000bab334
May 15 00:38:28 rpi4 kernel: [ 1464.814039] x27: 0000000000000000 x26:
0000000000000000
May 15 00:38:28 rpi4 kernel: [ 1464.819431] x25: 0000000000000000 x24:
ffff40af27c097ec
May 15 00:38:28 rpi4 kernel: [ 1464.824822] x23: ffff40af27756f38 x22:
ffff40af27c09000
May 15 00:38:28 rpi4 kernel: [ 1464.830213] x21: ffff40af27c09000 x20:
0000000000000001
May 15 00:38:28 rpi4 kernel: [ 1464.835605] x19: ffff40af27c09740 x18:
ffff40af272a2fa0
May 15 00:38:28 rpi4 kernel: [ 1464.840996] x17: 0000000000000000 x16:
000000000000000e
May 15 00:38:28 rpi4 kernel: [ 1464.846388] x15: 0000000000000001 x14:
ffff9c0bb7582148
May 15 00:38:28 rpi4 kernel: [ 1464.851778] x13: 0000000000000004 x12:
0000000000000000
May 15 00:38:28 rpi4 kernel: [ 1464.857168] x11: ffff9c0bb7595430 x10:
0000000000001950
May 15 00:38:28 rpi4 kernel: [ 1464.862560] x9 : ffff40af27c03e00 x8 :
ffff40af27c11ff0
May 15 00:38:28 rpi4 kernel: [ 1464.867952] x7 : 0000000000000000 x6 :
0000000000000001
May 15 00:38:28 rpi4 kernel: [ 1464.873342] x5 : 0000000000000000 x4 :
ffff40af27c07000
May 15 00:38:28 rpi4 kernel: [ 1464.878733] x3 : 4000000000000002 x2 :
ffff40af27759000
May 15 00:38:28 rpi4 kernel: [ 1464.884124] x1 : 4000000000000000 x0 :
ffff9c0bb75960c0
May 15 00:38:28 rpi4 kernel: [ 1464.889516] Call trace:
May 15 00:38:28 rpi4 kernel: [ 1464.891999] rcu_idle_enter+0x70/0x78
May 15 00:38:28 rpi4 kernel: [ 1464.895717] do_idle+0x1d4/0x2c0
May 15 00:38:28 rpi4 kernel: [ 1464.898994] cpu_startup_entry+0x2c/0x30
May 15 00:38:28 rpi4 kernel: [ 1464.902978] rest_init+0xb8/0xc8
May 15 00:38:28 rpi4 kernel: [ 1464.906255] arch_call_rest_init+0x14/0x1c
May 15 00:38:28 rpi4 kernel: [ 1464.910412] start_kernel+0x4f8/0x524
May 15 00:38:28 rpi4 kernel: [ 1464.914128] ---[ end trace 01ad7c5a4a25131d ]---
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: eoan
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https://bugs.launchpad.net/bugs/1878749
Title:
Kernel bug when running btrfs balance
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