[Bug 282789] iwlwifi hangs on boot with request_module_nowait("iwlmvm") -- broken after 2ac644317e671b001d3fb8fd924a1ae808a0bf32
Date: Mon, 09 Dec 2024 14:48:01 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282789 --- Comment #11 from commit-hook@FreeBSD.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=87e140a5c6f89eea7ea6320d1ae34566492abfc0 commit 87e140a5c6f89eea7ea6320d1ae34566492abfc0 Author: Bjoern A. Zeeb <bz@FreeBSD.org> AuthorDate: 2024-12-08 20:24:10 +0000 Commit: Bjoern A. Zeeb <bz@FreeBSD.org> CommitDate: 2024-12-09 14:45:24 +0000 iwlwifi: avoid (hard) hang on loading module For certain users or chipsets (reports were for CNVi devices but we are not sure if this is limited or specific to them) loading if_iwlwifi hangs. The reason for this is that a SYSINIT (module_load_order()) has not yet run in this case and the Linux driver tries to load the chipsets-specific module. On FreeBSD all supported sub-modules are part of if_iwlwifi so we do not have to load them separately but calling into kern_kldload via LinuxKPI request_module while loading the module gives us a hard hang. iwlwifi calls request_module_nowait() so we can simply skip over this and continue and the SYSINIT will do the job later if no other dependencies fail. Sponsored by: The FreeBSD Foundation MFC after: 3 days PR: 282789 Tested by: Ruslan Makhmatkhanov, Pete Wright Differential Revision: https://reviews.freebsd.org/D47994 sys/contrib/dev/iwlwifi/iwl-drv.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) -- You are receiving this mail because: You are on the CC list for the bug.