ci2 starts bisection 2026-07-11 23:32:34.680304387 +0000 UTC m=+77483.086591831
bisecting fixing commit since 1989cd3d56e257c783ac75200496a2341b50599c
building syzkaller on b5ceaad20a1c1f911045a12770d98c0d99300b1b
ensuring issue is reproducible on original commit 1989cd3d56e257c783ac75200496a2341b50599c

testing commit 1989cd3d56e257c783ac75200496a2341b50599c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: de726b1225a27b18e398c19e617988bb96037b95a7123ba0428b0f9fe2841d57
all runs: crashed: BUG: unable to handle kernel paging request in balance_internal
representative crash: BUG: unable to handle kernel paging request in balance_internal, types: [MEMORY_SAFETY_BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit 1989cd3d56e257c783ac75200496a2341b50599c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 694ebba6e6628eb2eec9da3e82c0f16c2421bf8972f42f78695f683a00f0a0b3
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in balance_internal
representative crash: BUG: unable to handle kernel NULL pointer dereference in balance_internal, types: [NULL-POINTER-DEREFERENCE]
the bug reproduces without the instrumentation
disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed
kconfig minimization: base=7505 full=9786 leaves diff=2008
split chunks (needed=false): <2008>
split chunk #0 of len 2008 into 5 parts
testing without sub-chunk 1/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 1989cd3d56e257c783ac75200496a2341b50599c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 990ee0a644cbb3c7ad3cfff2d8cc7d4e50926840fb3f20e94e6bb5f314146e0e
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in balance_internal
representative crash: BUG: unable to handle kernel NULL pointer dereference in balance_internal, types: [NULL-POINTER-DEREFERENCE]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed
testing commit 1989cd3d56e257c783ac75200496a2341b50599c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e4fb3fec403f2fb74dd0565b7a64e7757e6ef1a95bad2833c1935f23c9df081a
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in balance_internal
representative crash: BUG: unable to handle kernel NULL pointer dereference in balance_internal, types: [NULL-POINTER-DEREFERENCE]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed
testing commit 1989cd3d56e257c783ac75200496a2341b50599c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: d95ae9e80435b7e5fef886940faaee1ec5f9cfdacca125ef6aeeea036856ca7e
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in balance_internal
representative crash: BUG: unable to handle kernel NULL pointer dereference in balance_internal, types: [NULL-POINTER-DEREFERENCE]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit 1989cd3d56e257c783ac75200496a2341b50599c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: fd918f74c8d19a5b23bde99768b173b1fb0a20f5b1a5068ba5bb1e249cad7062
all runs: OK
false negative chance: 0.000
testing without sub-chunk 5/5
disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed
testing commit 1989cd3d56e257c783ac75200496a2341b50599c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 6a669b96248a90d267cd4d6585190e62bf1e74df9a40a9d4afa6194c3a2655f0
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in balance_internal
representative crash: BUG: unable to handle kernel NULL pointer dereference in balance_internal, types: [NULL-POINTER-DEREFERENCE]
the chunk can be dropped
minimized to 402 configs; suspects: [AF_RXRPC ATM AX25 CFG80211 DRM DRM_ROCKCHIP GENEVE HAMRADIO HID_PANTHERLORD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_SONY HID_THRUSTMASTER INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET IP_SCTP L2TP MAC80211 MEDIA_COMMON_OPTIONS MEDIA_RADIO_SUPPORT MFD_DLN2 MFD_RETU NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PANTHERLORD_FF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PATA_AMD PATA_OLDPIIX PATA_SCH PCCARD PCMCIA PERCPU_STATS PERSISTENT_KEYRINGS PHY_CPCAP_USB PHY_QCOM_USB_HSIC PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PLFXLC PMIC_OPREGION PM_DEBUG PM_SLEEP_DEBUG PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PRISM2_USB PROC_CHILDREN PROC_KCORE PROC_MEM_ALWAYS_FORCE PSI PSTORE_842_COMPRESS PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_COMPRESS QFMT_V2 QNX4FS_FS QNX6FS_FS QUOTA_NETLINK_INTERFACE QUOTA_TREE RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RC_ATI_REMOTE RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP_SOUNDWIRE REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RELAY RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROCKCHIP_ANALOGIX_DP ROCKCHIP_CDN_DP ROCKCHIP_DW_HDMI ROCKCHIP_DW_MIPI_DSI ROCKCHIP_INNO_HDMI ROCKCHIP_LVDS ROCKCHIP_VOP ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHEDSTATS SCSI_CONSTANTS SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SCAN_ASYNC SCSI_SPI_ATTRS SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_NZXT_KRAKEN2 SENSORS_NZXT_SMART2 SERIAL_8250_DETECT_IRQ SERIAL_8250_MANY_PORTS SERIAL_8250_RSA SERIO_SERPORT SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMB_SERVER SMC SMC_DIAG SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_AUDIO_GRAPH_CARD SND_AUDIO_GRAPH_CARD2 SND_BCD2000 SND_BCM2835_SOC_I2S SND_COMPRESS_OFFLOAD SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMAENGINE_PCM SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_ALIGNED_MMIO SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HDA_TEGRA SND_HRTIMER SND_HWDEP SND_IMX_SOC SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MESON_AIU SND_MESON_AXG_FIFO SND_MESON_AXG_FRDDR SND_MESON_AXG_PDM SND_MESON_AXG_SOUND_CARD SND_MESON_AXG_SPDIFIN SND_MESON_AXG_SPDIFOUT SND_MESON_AXG_TDMIN SND_MESON_AXG_TDMOUT SND_MESON_AXG_TDM_FORMATTER SND_MESON_AXG_TDM_INTERFACE SND_MESON_AXG_TODDR SND_MESON_CARD_UTILS SND_MESON_CODEC_GLUE SND_MESON_G12A_TOACODEC SND_MESON_G12A_TOHDMITX SND_MESON_GX_SOUND_CARD SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCM_ELD SND_PCM_IEC958 SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SIMPLE_CARD SND_SIMPLE_CARD_UTILS SND_SOC SND_SOC_ADAU7002 SND_SOC_AK4613 SND_SOC_APPLE_MCA SND_SOC_APQ8016_SBC SND_SOC_COMPRESS SND_SOC_DA7219 SND_SOC_DMIC SND_SOC_ES7134 SND_SOC_ES7241 SND_SOC_FSL_ASOC_CARD SND_SOC_FSL_ASRC SND_SOC_FSL_AUDMIX SND_SOC_FSL_EASRC SND_SOC_FSL_ESAI SND_SOC_FSL_MICFIL SND_SOC_FSL_SAI SND_SOC_FSL_SPDIF SND_SOC_FSL_SSI SND_SOC_FSL_UTILS SND_SOC_GENERIC_DMAENGINE_PCM SND_SOC_GTM601 SND_SOC_HDMI_CODEC SND_SOC_I2C_AND_SPI SND_SOC_IMX_AUDMIX SND_SOC_IMX_AUDMUX SND_SOC_IMX_PCM_DMA SND_SOC_IMX_SGTL5000 SND_SOC_IMX_SPDIF SND_SOC_LPASS_APQ8016 SND_SOC_LPASS_CDC_DMA SND_SOC_LPASS_CPU SND_SOC_LPASS_HDMI SND_SOC_LPASS_MACRO_COMMON SND_SOC_LPASS_PLATFORM SND_SOC_LPASS_RX_MACRO SND_SOC_LPASS_SC7180 SND_SOC_LPASS_SC7280 SND_SOC_LPASS_TX_MACRO SND_SOC_LPASS_VA_MACRO SND_SOC_LPASS_WSA_MACRO SND_SOC_MAX98357A SND_SOC_MAX98927 SND_SOC_MESON_T9015 SND_SOC_MSM8916_WCD_ANALOG SND_SOC_MSM8916_WCD_DIGITAL SND_SOC_MSM8996 SND_SOC_NAU8822 SND_SOC_PCM3168A SND_SOC_PCM3168A_I2C SND_SOC_QCOM SND_SOC_QCOM_COMMON SND_SOC_QCOM_SDW SND_SOC_QDSP6 SND_SOC_QDSP6_ADM SND_SOC_QDSP6_AFE SND_SOC_QDSP6_AFE_CLOCKS SND_SOC_QDSP6_AFE_DAI SND_SOC_QDSP6_APM SND_SOC_QDSP6_APM_DAI SND_SOC_QDSP6_APM_LPASS_DAI SND_SOC_QDSP6_ASM SND_SOC_QDSP6_ASM_DAI SND_SOC_QDSP6_COMMON SND_SOC_QDSP6_CORE SND_SOC_QDSP6_PRM SND_SOC_QDSP6_PRM_LPASS_CLOCKS SND_SOC_QDSP6_ROUTING SND_SOC_RCAR SND_SOC_RK3399_GRU_SOUND SND_SOC_RL6231 SND_SOC_ROCKCHIP SND_SOC_ROCKCHIP_I2S SND_SOC_ROCKCHIP_RT5645 SND_SOC_ROCKCHIP_SPDIF SND_SOC_RT5514 SND_SOC_RT5514_SPI SND_SOC_RT5645 SND_SOC_RT5659 SND_SOC_RT5663 SND_SOC_RT5682 SND_SOC_RT5682S SND_SOC_RT5682_I2C SND_SOC_RZ SND_SOC_SAMSUNG SND_SOC_SC7180 SND_SOC_SC7280 SND_SOC_SDM845 SND_SOC_SGTL5000 SND_SOC_SIMPLE_AMPLIFIER SND_SOC_SIMPLE_MUX SND_SOC_SM8250 SND_SOC_SPDIF SND_SOC_TAS571X SND_SOC_TEGRA SND_SOC_TEGRA186_ASRC SND_SOC_TEGRA186_DSPK SND_SOC_TEGRA210_ADMAIF SND_SOC_TEGRA210_ADX SND_SOC_TEGRA210_AHUB SND_SOC_TEGRA210_AMX SND_SOC_TEGRA210_DMIC SND_SOC_TEGRA210_I2S SND_SOC_TEGRA210_MIXER SND_SOC_TEGRA210_MVC SND_SOC_TEGRA210_OPE SND_SOC_TEGRA210_SFC SND_SOC_TEGRA_AUDIO_GRAPH_CARD SND_SOC_TLV320AIC31XX SND_SOC_TLV320AIC32X4 SND_SOC_TLV320AIC32X4_I2C SND_SOC_TOPOLOGY SND_SOC_WCD9335 SND_SOC_WCD934X SND_SOC_WCD938X SND_SOC_WCD938X_SDW SND_SOC_WCD_MBHC SND_SOC_WM8524 SND_SOC_WM8904 SND_SOC_WM8960 SND_SOC_WM8962 SND_SOC_WM8978 SND_SOC_WM8994 SND_SOC_WM_HUBS SND_SOC_WSA881X SND_SPI SND_SUN4I_I2S SND_SUN4I_SPDIF SND_SUN50I_CODEC_ANALOG SND_SUN8I_ADDA_PR_REGMAP SND_SUN8I_CODEC SND_SUN8I_CODEC_ANALOG SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUNDWIRE_QCOM SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI_DLN2 SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STREAM_PARSER SUN_PARTITION SW_SYNC SYN_COOKIES SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TCG_CRB TCG_TIS_I2C_INFINEON TCG_TPM TCP_CONG_ADVANCED TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TCP_MD5SIG TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TWL4030_CORE USB_STORAGE_REALTEK VXLAN WIRELESS WLAN WLAN_VENDOR_PURELIFI XFRM]
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing current HEAD 090666d3cc906176fc47363520eb746b94c7d578
testing commit 090666d3cc906176fc47363520eb746b94c7d578 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 9ae336d115767b79b1fb2ae951aa50bfff6672fd22153b92a0e5ea80b02f4aa8
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in balance_internal
representative crash: BUG: unable to handle kernel NULL pointer dereference in balance_internal, types: [NULL-POINTER-DEREFERENCE]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h37m33.657082977s (build: 1h18m29.781374753s, test: 55m37.580350755s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1.177
crash: BUG: unable to handle kernel NULL pointer dereference in balance_internal
REISERFS warning (device loop2): vs-13060 reiserfs_update_sd_size: stat data of object [2 2 0x0 SD] (nlink == 1) not found (pos 0)
REISERFS warning (device loop2): vs-13060 reiserfs_update_sd_size: stat data of object [2 2 0x0 SD] (nlink == 1) not found (pos 0)
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000103e20000
[0000000000000018] pgd=08000001124f2003, p4d=08000001124f2003, pud=08000001124e6003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 3748 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : balance_internal_when_delete fs/reiserfs/ibalance.c:675 [inline]
pc : balance_internal+0xa7c/0xc98 fs/reiserfs/ibalance.c:849
lr : internal_delete_childs fs/reiserfs/ibalance.c:287 [inline]
lr : balance_internal_when_delete fs/reiserfs/ibalance.c:648 [inline]
lr : balance_internal+0x128/0xc98 fs/reiserfs/ibalance.c:849
sp : ffff800012deb330
x29: ffff800012deb400 x28: ffff800012deb4c8 x27: ffff800012deb4b8
x26: 0000000000000001 x25: ffff0000c8d0edc8 x24: 0000000000000001
x23: 0000000000000001 x22: ffff0000c8d0edc8 x21: 0000000000000001
x20: ffff800012deb600 x19: 0000000000000000 x18: 0000000000000004
x17: 0000000000000001 x16: 0000000000000001 x15: 0000000000000001
x14: 00000000fffffffe x13: 00000000fffffffe x12: 00000000aaaaaaab
x11: ffffffffffffffe8 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c7bc4000 x7 : 49ce0fe700000213 x6 : 49ce0fe700000213
x5 : 0000000000001001 x4 : ffff0000c8d0edc8 x3 : 0000000000000000
x2 : 0000000000000000 x1 : ffff0000c8d0edc8 x0 : ffff0000c8d0edc8
Call trace:
 balance_internal_when_delete fs/reiserfs/ibalance.c:675 [inline]
 balance_internal+0xa7c/0xc98 fs/reiserfs/ibalance.c:849
 do_balance+0x14c0/0x1ca0 fs/reiserfs/do_balan.c:1896
 reiserfs_delete_solid_item+0x204/0x3cc fs/reiserfs/stree.c:1462
 remove_save_link+0x84/0x10c fs/reiserfs/super.c:540
 reiserfs_truncate_file+0x27c/0x3ec fs/reiserfs/inode.c:2322
 reiserfs_setattr+0x2dc/0x45c fs/reiserfs/inode.c:3395
 notify_change+0x354/0x3b0 fs/attr.c:499
 do_truncate+0x9c/0xe8 fs/open.c:65
 handle_truncate fs/namei.c:3293 [inline]
 do_open fs/namei.c:3638 [inline]
 path_openat+0xabc/0xbb4 fs/namei.c:3791
 do_filp_open+0xb0/0x154 fs/namei.c:3818
 do_sys_openat2+0x84/0x17c fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __arm64_sys_openat+0x70/0x98 fs/open.c:1347
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x40/0xdc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0xb0/0xe8 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x24/0x80 arch/arm64/kernel/syscall.c:204
 el0_svc+0x34/0xd4 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 93407d08 8b080e88 f9402513 f9400688 (f9400e69) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	93407d08 	sxtw	x8, w8
   4:	8b080e88 	add	x8, x20, x8, lsl #3
   8:	f9402513 	ldr	x19, [x8, #72]
   c:	f9400688 	ldr	x8, [x20, #8]
* 10:	f9400e69 	ldr	x9, [x19, #24] <-- trapping instruction