gargamel:/sys/block/bcache16/bcache# echo 1 > stop
bcache: bcache_device_free() bcache16 stopped
------------[ cut here ]------------
WARNING: CPU: 7 PID: 11051 at lib/idr.c:383 ida_remove+0xe8/0x10b
ida_remove called for id=16 which is not allocated.
Modules linked in: uas usb_storage veth ip6table_filter ip6_tables ebtable_nat
ebtables ppdev lp xt_addrtype br_netfilter bridge stp llc tun autofs4 softdog
binfmt_misc ftdi_sio nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc
ipt_REJECT nf_reject_ipv4 xt_conntrack xt_mark xt_nat xt_tcpudp nf_log_ipv4
nf_log_common xt_LOG iptable_mangle iptable_filter lm85 hwmon_vid pl2303
dm_snapshot dm_bufio iptable_nat ip_tables nf_conntrack_ipv4 nf_defrag_ipv4
nf_nat_ipv4 nf_conntrack_ftp ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_nat
nf_conntrack x_tables sg st snd_pcm_oss snd_mixer_oss bcache kvm_intel kvm
irqbypass snd_hda_codec_realtek snd_hda_codec_generic snd_cmipci snd_hda_intel
snd_mpu401_uart snd_opl3_lib snd_hda_codec snd_rawmidi snd_hda_core rc_ati_x10
snd_hwdep snd_seq_device ati_remote
snd_pcm eeepc_wmi asix snd_timer usbserial asus_wmi usbnet rc_core snd
sparse_keymap libphy rfkill hwmon lpc_ich soundcore mei_me parport_pc wmi
tpm_infineon parport tpm_tis i2c_i801 battery input_leds tpm_tis_core i915 tpm
pcspkr evdev e1000e ptp pps_core fuse raid456 multipath mmc_block mmc_core lrw
ablk_helper dm_crypt dm_mod async_raid6_recov async_pq async_xor async_memcpy
async_tx crc32c_intel blowfish_x86_64 blowfish_common pcbc aesni_intel
aes_x86_64 crypto_simd glue_helper cryptd xhci_pci ehci_pci xhci_hcd ehci_hcd
r8169 sata_sil24 mii usbcore thermal mvsas fan libsas scsi_transport_sas [last
unloaded: ftdi_sio]
CPU: 7 PID: 11051 Comm: kworker/7:13 Tainted: G U W
4.11.0-amd64-preempt-sysrq-20170406 #2
Hardware name: System manufacturer System Product Name/P8H67-M PRO, BIOS 3904
04/27/2013
Workqueue: events cached_dev_free [bcache]
Call Trace:
dump_stack+0x61/0x7d
__warn+0xc2/0xdd
warn_slowpath_fmt+0x5a/0x76
ida_remove+0xe8/0x10b
ida_simple_remove+0x2e/0x43
bcache_device_free+0x8c/0xc4 [bcache]
cached_dev_free+0x6b/0xe1 [bcache]
process_one_work+0x193/0x2b0
worker_thread+0x1e9/0x2c1
? rescuer_thread+0x2b1/0x2b1
kthread+0xfb/0x100
? init_completion+0x24/0x24
ret_from_fork+0x2c/0x40
---[ end trace 12586d8b165ff8f2 ]---
Prior to that:
cd /sys/fs/bcache/5bc072a8-ab17-446d-9744-e247949913c1
echo 1 > stop
I needed to complete stop and remove all traces of a bcache before I could
mdadm --stop the underlying array.
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
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