On Mon, Dec 26, 2022 at 11:11:44AM +0800, Changhui Zhong wrote: > Hello, > Below issue was triggered with ( v6.0.15-996-g988abd970566), pls help check it > > [ 7845.648246] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000058 > [ 7845.648776] Mem abort info: > [ 7845.648938] ESR = 0x0000000096000004 > [ 7845.649155] EC = 0x25: DABT (current EL), IL = 32 bits > [ 7845.649462] SET = 0, FnV = 0 > [ 7845.649639] EA = 0, S1PTW = 0 > [ 7845.649821] FSC = 0x04: level 0 translation fault > [ 7845.650105] Data abort info: > [ 7845.650274] ISV = 0, ISS = 0x00000004 > [ 7845.650496] CM = 0, WnR = 0 > [ 7845.650670] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000103cba000 > [ 7845.651043] [0000000000000058] pgd=0000000000000000, p4d=0000000000000000 > [ 7845.651446] Internal error: Oops: 96000004 [#1] SMP > [ 7845.651764] Modules linked in: snd_aloop snd_dummy snd_seq > snd_seq_device snd_pcm snd_timer snd soundcore ansi_cprng crypto_user > veth vrf ipvlan echainiv esp4 des_generic libdes tun geneve ip6_tables > ip_vs ip_set xt_sctp nf_conntrack_netlink nft_chain_nat xt_nat nf_nat > nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables > nfnetlink tcp_dctcp ah6 ah4 binfmt_misc can_j1939 l2tp_core bnep hidp > can_bcm pptp gre can_raw rfcomm bluetooth ieee802154_socket ieee802154 > af_key qrtr pppoe pppox ppp_generic slhc mpls_router ip_tunnel > vsock_loopback vmw_vsock_virtio_transport_common > vmw_vsock_vmci_transport vmw_vmci vsock fcrypt pcbc rxrpc smc ib_core > kcm can macsec llc sctp ip6_udp_tunnel udp_tunnel mlx4_en mlx4_core > nfp tls loop nls_utf8 cifs cifs_arc4 cifs_md4 dns_resolver fscache > netfs rfkill sunrpc vfat fat virtio_net net_failover failover fuse > zram xfs crct10dif_ce polyval_ce virtio_console polyval_generic > ghash_ce virtio_blk virtio_mmio qemu_fw_cfg [last unloaded: vxlan] > [ 7845.656785] CPU: 5 PID: 789199 Comm: bash Not tainted 6.0.15 #1 > [ 7845.657126] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 > [ 7845.657523] pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) > [ 7845.657932] pc : blk_mq_quiesce_queue+0x50/0xa0 Hi Changhui, Can you figure out the fault source code by gdb? gdb vmlinux gdb> l *(blk_mq_quiesce_queue+0x50) thanks, Ming
