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Date:      Mon, 29 Oct 2001 21:46:22 -0500 (EST)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        Marcel Moolenaar <marcel@xcllnt.net>
Cc:        alpha@FreeBSD.ORG
Subject:   Re: Linuxulator MFC candidate for testing
Message-ID:  <15326.5246.267516.981863@grasshopper.cs.duke.edu>
In-Reply-To: <20011026220239.A4254@dhcp01.pn.xcllnt.net>
References:  <20011026220239.A4254@dhcp01.pn.xcllnt.net>

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Marcel Moolenaar writes:
 > Gang,
 > 
 > Since I don't have a -stable Alpha, I can only do as much as
 > prepare an MFC and make it compile as much as possible. If
 > someone on this list can try out the patch and tell me if it
 > doesn't cause regressionsi (assuming it builds and loads),
 > I'd be grateful.
 > 
 > The MFC candidate (patch) can be downloaded here:
 > 
 > 	http://www.xcllnt.net/~marcel/linux.diff.gz
 > 
 > Please remove /sys/alpha/linux/linux_ioctl.h before building.

Two issues so far.

DUMMY(mount) needs to be added to sys/alpha/linux/linux_dummy.c
to make the module load.

The second, much more serious problem, is that when I run the Compaq
JRE/JDK for linux the system locks up. It responds to pings,etc.  But
all shells are dead, X locks up, etc.  Its like its in a really tight
loop in sigsuspend()..  This is reproducible.


The stack trace looks like this:


db> tr
siointr1() at siointr1+0x160
siointr() at siointr+0x14
isa_handle_intr() at isa_handle_intr+0x2c
alpha_dispatch_intr() at alpha_dispatch_intr+0x8c
interrupt() at interrupt+0x1d8
XentInt() at XentInt+0x28
--- interrupt (from ipl 0) ---
tsleep() at tsleep+0x394
sigsuspend() at sigsuspend+0xd8
osf1_sigsuspend() at osf1_sigsuspend+0x84
syscall() at syscall+0x224
XentSys() at XentSys+0x5c
--- syscall (111, Linux ELF, osf1_sigsuspend) ---
--- user mode ---
db> 


Yes, I realize that's an osf1_sigsuspend() getting called through the
linux sysent.  It works fine in the old, pre-patch code.  I don't
understand how you could have broken this with your patch.

Any ideas?

Drew




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