Bug 235151 - panic: g_resize_provider_event but withered (on r343254)
Summary: panic: g_resize_provider_event but withered (on r343254)
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-geom (Nobody)
URL:
Keywords: crash
Depends on:
Blocks:
 
Reported: 2019-01-23 12:13 UTC by Andriy Voskoboinyk
Modified: 2024-01-24 06:30 UTC (History)
4 users (show)

See Also:

Attachments
Panic backtrace (6.77 KB, text/plain)
2019-01-23 12:13 UTC, Andriy Voskoboinyk 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Andriy Voskoboinyk freebsd_committer freebsd_triage 2019-01-23 12:13:33 UTC 
Created attachment 201355 [details]
Panic backtrace

The reason of this panic is the same as for bug #235081 : unstable smartphone USB cable connection.
Comment 1 Conrad Meyer freebsd_committer freebsd_triage 2019-01-23 16:14:44 UTC 
The assertion is simply bogus.  There is no coordination that ensures the check in g_resize_provider() is still valid in g_resize_provider_event().  I think this should probably just be a if () -> return case.
Comment 2 Conrad Meyer freebsd_committer freebsd_triage 2019-01-23 16:16:26 UTC 
I expect the similar assertion in g_new_provider_event() is similarly bogus.
Comment 3 Ed Maste freebsd_committer freebsd_triage 2020-10-23 15:07:56 UTC 
I encountered this issue on some test hardware with a virtual IPMI USB CDROM that did not attach correctly.