Bug 14115 - gcc-2.96-33 builds non-bootable kernel 2.4.0-test5-pre1
gcc-2.96-33 builds non-bootable kernel 2.4.0-test5-pre1
Status: CLOSED RAWHIDE
Product: Red Hat Raw Hide
Classification: Retired
Component: gcc (Show other bugs)
1.0
i386 Linux
medium Severity medium
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Assigned To: Jakub Jelinek
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Depends On:
Blocks:
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Reported: 2000-07-17 10:11 EDT by Olivier Baudron
Modified: 2008-05-01 11:37 EDT (History)
0 users

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Last Closed: 2000-07-24 19:21:32 EDT
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Description Olivier Baudron 2000-07-17 10:11:49 EDT
gcc-2.96-33 compiles kernel 2.4.0-test5-pre1 but when booting it hangs
after 'Starting kswapd v1.6'. I tried with egcs-1.1.2 and it boots just
fine, so the problem is probably a gcc issue, not a kernel one.
I inserted various 'printk("coucou\n")' in the code and it appears that the
problem occurs in linux/init/main.c lines 615--624:

static void __init do_initcalls(void)
{
	initcall_t *call;

	call = &__initcall_start;
	do {
		(*call)();
		call++;
	} while (call < &__initcall_end);
}

The first iteration, which threads kswapd, is correctly executed. In the
second, the computer hangs after (*call)(). Normally, if compiled with
egcs, the kernel outputs 'Detected PS/2 Mouse Port.' so it is possible that
the build problem is somewhere in the PS/2 driver.

Also note that kernel 2.4.0-test2 did not have this problem whereas
2.4.0-test4-pre6 did. I could not try with test3 because gcc was unable to
compile it.
Comment 1 Jakub Jelinek 2000-07-24 19:21:30 EDT
Am just testing new gcc fixes if the kernel works with them
Comment 2 Jakub Jelinek 2000-08-09 09:04:22 EDT
gcc in the current distribution builds a working kernel (last tried
2.4.0-test6-pre9)

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