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SubjectRe: [PATCH v5] conversion to blk-mq
On Tue, 3 Jun 2014, Matias Bjorling wrote:
>
> Keith, will you take the nvmemq_wip_v6 branch for a spin? Thanks!

Still fails as before:

[ 88.933881] BUG: unable to handle kernel NULL pointer dereference at 0000000000000014
[ 88.942900] IP: [<ffffffff811c51b8>] blk_mq_map_queue+0xf/0x1e
[ 88.949605] PGD 427be0067 PUD 425495067 PMD 0
[ 88.954915] Oops: 0000 [#1] SMP
[ 88.958787] Modules linked in: nvme parport_pc ppdev lp parport dlm sctp libcrc32c configfs nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc md4 hmac cifs bridge stp llc joydev jfs hid_generic usbhid hid loop md_mod x86_pkg_temp_thermal coretemp kvm_intel kvm iTCO_wdt iTCO_vendor_support crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd microcode ehci_pci ehci_hcd pcspkr usbcore lpc_ich ioatdma usb_common mfd_core evdev i2c_i801 wmi acpi_cpufreq tpm_tis tpm ipmi_si ipmi_msghandler processor thermal_sys button ext4 crc16 jbd2 mbcache dm_mod nbd sg sd_mod sr_mod crc_t10dif cdrom crct10dif_common isci ahci libsas igb libahci scsi_transport_sas ptp pps_core i2c_algo_bit libata i2c_core scsi_mod dca
[ 89.042529] CPU: 5 PID: 4544 Comm: nvme_id_ctrl Not tainted 3.15.0-rc1+ #3
[ 89.050295] Hardware name: Intel Corporation S2600GZ/S2600GZ, BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013
[ 89.061856] task: ffff88042bbdb0d0 ti: ffff88042c24c000 task.ti: ffff88042c24c000
[ 89.070305] RIP: 0010:[<ffffffff811c51b8>] [<ffffffff811c51b8>] blk_mq_map_queue+0xf/0x1e
[ 89.079747] RSP: 0018:ffff88042c24dda0 EFLAGS: 00010202
[ 89.085795] RAX: 0000000000000000 RBX: ffffe8fbffaa1b00 RCX: ffff88042e8ec4b0
[ 89.093868] RDX: 0000000000008be6 RSI: 0000000000000005 RDI: ffff88042abdf048
[ 89.101950] RBP: ffff88042c2b81c0 R08: ffff88042c24c000 R09: ffff880035c58410
[ 89.110033] R10: ffff88043f6b2dc0 R11: ffff88043f6b2dc0 R12: ffff88042c24de94
[ 89.118119] R13: 000000000000007d R14: 00007fff0cd892b0 R15: 0000000000000000
[ 89.126210] FS: 00007f39866c5700(0000) GS:ffff88043f6a0000(0000) knlGS:0000000000000000
[ 89.135387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 89.141916] CR2: 0000000000000014 CR3: 000000042b387000 CR4: 00000000000407e0
[ 89.149997] Stack:
[ 89.152353] ffffffff811c6334 00000000fffffffc ffff88042c2b81c0 ffff88042c24de10
[ 89.161096] ffffffffa054dcbb 0000000000000246 00000000fffffffc ffff8800b5e05cc0
[ 89.169839] 00000000fffffff4 ffff8800b5e05cc0 ffff88042bbc3000 0000000000001000
[ 89.178583] Call Trace:
[ 89.181429] [<ffffffff811c6334>] ? blk_mq_free_request+0x37/0x48
[ 89.188360] [<ffffffffa054dcbb>] ? __nvme_submit_admin_cmd+0x52/0x68 [nvme]
[ 89.196349] [<ffffffffa054f761>] ? nvme_user_admin_cmd+0x144/0x1b1 [nvme]
[ 89.204150] [<ffffffffa054f7eb>] ? nvme_dev_ioctl+0x1d/0x2b [nvme]
[ 89.211278] [<ffffffff81125916>] ? do_vfs_ioctl+0x3f2/0x43b
[ 89.217710] [<ffffffff81117e35>] ? vfs_write+0xde/0xfc
[ 89.223657] [<ffffffff811259ad>] ? SyS_ioctl+0x4e/0x7d
[ 89.229622] [<ffffffff8139c6d2>] ? system_call_fastpath+0x16/0x1b
[ 89.236636] Code: 8b 4a 38 48 39 4e 38 72 12 74 06 b8 01 00 00 00 c3 48 8b 4a 60 48 39 4e 60 73 f0 c3 66 66 66 66 90 48 8b 87 e0 00 00 00 48 63 f6 <8b> 14 b0 48 8b 87 f8 00 00 00 48 8b 04 d0 c3 89 ff f0 48 0f ab
[ 89.263435] RIP [<ffffffff811c51b8>] blk_mq_map_queue+0xf/0x1e
[ 89.270237] RSP <ffff88042c24dda0>
[ 89.274237] CR2: 0000000000000014
[ 89.278095] ---[ end trace 54c0e8cbb1fe2ec3 ]---


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