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| author | Thomas Meyer <thomas@m3y3r.de> | 2015-03-28 09:59:46 +0100 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2015-04-13 21:17:44 +0200 |
| commit | 33bbc3065414722065a20cbdbeaf352173e72f39 (patch) | |
| tree | f4cf1b3df0f7a23f80a9d14129ec8f8c1f14ad19 /arch/um/include | |
| parent | 04a418495e0852263d77c4fb82adf470feaafef3 (diff) | |
| download | blackbird-obmc-linux-33bbc3065414722065a20cbdbeaf352173e72f39.tar.gz blackbird-obmc-linux-33bbc3065414722065a20cbdbeaf352173e72f39.zip | |
um: Move uml_postsetup in the init_thread stack
atomic_notifier_chain_register() and uml_postsetup() do call kernel code
that rely on the "current" kernel macro and a valid task_struct resp.
thread_info struct. Give those functions a valid stack by moving
uml_postsetup() in the init_thread stack. This moves enables a panic()
call in this early code to generate a valid stacktrace, instead of
crashing.
E.g. when an UML kernel is started with an initrd but too few physical
memory the panic() call get's actually processed.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/include')
| -rw-r--r-- | arch/um/include/shared/as-layout.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/include/shared/as-layout.h b/arch/um/include/shared/as-layout.h index 41c8c774ec10..ca1843e1df15 100644 --- a/arch/um/include/shared/as-layout.h +++ b/arch/um/include/shared/as-layout.h @@ -56,6 +56,7 @@ extern unsigned long brk_start; extern unsigned long host_task_size; extern int linux_main(int argc, char **argv); +extern void uml_finishsetup(void); struct siginfo; extern void (*sig_info[])(int, struct siginfo *si, struct uml_pt_regs *); |
