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freebsd-skq/sys/geom
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Alan Somers 2a2306099d geli: fix a livelock during panic 
During any kind of shutdown, kern_reboot calls geli's pre_sync event hook,
which tries to destroy all unused geli devices. But during a panic, geli
can't destroy any devices, because the scheduler is stopped, so it can't
switch threads. A livelock results, and the system never dumps core.

This commit fixes the problem by refusing to destroy any devices during
panic, used or otherwise.

PR:		246207
Reviewed by:	jhb
MFC after:	2 weeks
Sponsored by:	Axcient
Differential Revision:	https://reviews.freebsd.org/D24697
2020-05-27 19:13:26 +00:00
..
bde Annotate geom modules with MODULE_VERSION 2018-04-10 19:18:16 +00:00
cache Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
concat Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
eli geli: fix a livelock during panic 2020-05-27 19:13:26 +00:00
gate Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
journal geom_journal: Only stop the switcher process if one was started. 2020-04-03 13:57:41 +00:00
label Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
linux_lvm Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
mirror geom(4) mirror: Do not panic on gmirror(8) insert, resize 2020-05-11 22:39:53 +00:00
mountver Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
multipath Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
nop Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
part Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
raid Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
raid3 Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
shsec Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
stripe Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
uzip Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
vinum Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
virstor Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
zero Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
geom_bsd_enc.c sys/geom: adoption of SPDX licensing ID tags. 2017-11-27 15:17:37 +00:00
geom_ccd.c Annotate geom modules with MODULE_VERSION 2018-04-10 19:18:16 +00:00
geom_ctl.c We don't even need Giant here. It isn't protecting anything internal 2019-11-23 23:44:00 +00:00
geom_ctl.h Define a constant for the maximum number of GEOM_CTL arguments. 2019-02-20 17:07:08 +00:00
geom_dbg.h GEOM: Reduce unnecessary log interleaving with sbufs 2019-08-07 19:28:35 +00:00
geom_dev.c Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
geom_disk.c Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
geom_disk.h Add GEOM attribute to report physical device name, and report it 2019-11-09 17:30:19 +00:00
geom_dump.c Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
geom_event.c Retire nstart/nend counters. 2019-12-30 00:46:10 +00:00
geom_flashmap.c Remove NAND and NANDFS support 2019-06-25 04:50:09 +00:00
geom_flashmap.h Support device-independent labels for geom_flashmap slices. 2019-03-24 19:11:45 +00:00
geom_int.h Remove duplicate g_debugflags declaration. 2019-12-05 15:07:32 +00:00
geom_io.c Pass BIO_SPEEDUP through all the geom layers 2020-01-17 01:15:55 +00:00
geom_kern.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
geom_map.c Annotate geom modules with MODULE_VERSION 2018-04-10 19:18:16 +00:00
geom_redboot.c Extend stripeoffset and stripesize of GEOMs from u_int to off_t 2018-10-27 16:14:42 +00:00
geom_slice.c Pass BIO_SPEEDUP through all the geom layers 2020-01-17 01:15:55 +00:00
geom_slice.h sys/geom: adoption of SPDX licensing ID tags. 2017-11-27 15:17:37 +00:00
geom_subr.c Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
geom_vfs.c This commit enables a UFS filesystem to do a forcible unmount when 2020-05-25 23:47:31 +00:00
geom_vfs.h sys/geom: adoption of SPDX licensing ID tags. 2017-11-27 15:17:37 +00:00
geom.h Reimplement aliases in geom 2020-05-13 19:17:28 +00:00
notes