On Wed, May 16, 2012 at 04:57:00PM -0500, Jonathan Nieder wrote: > From: Émeric Maschino <emeric.maschino@xxxxxxxxx> > > commit 65cc21b4523e94d5640542a818748cd3be8cd6b4 upstream. > > While debugging udev > 170 failure on Debian Wheezy > (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=648325), it appears > that the issue was in fact due to missing accept4() in ia64. > > This patch simply adds accept4() to ia64. > > Signed-off-by: Émeric Maschino <emeric.maschino@xxxxxxxxx> > Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx> > Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx> > --- > Hi Ben and Greg, > > Émeric Maschino wrote[1]: > > > Starting with udev 170 (well, IIRC!), console is flooded at startup with: > > > > udevd[XXX]: unable to receive ctrl connection: Function not implemented > > > > where XXX is a number (PID?). > > > > And system takes ~3 min. to get login prompt. > > Indeed, udev versions since 168 (2011-04-22) require the accept4() > syscall. That syscall was added to the kernel in 2.6.28 (2008-11-19), > but arches were slow to pick it up because checksyscalls.sh didn't > catch it[2] (it was implemented on 32-bit x86 using sys_socketcall). > Here is a list of when each arch added the syscall: > > x86 and arches using socketcall (2008-11-19) v2.6.28-rc6~45 > sparc64 (2008-11-19) v2.6.28-rc6~44 > MIPS (2009-08-03) v2.6.31-rc6~64^2 > microblaze (2009-12-28) v2.6.33-rc5~19^2~3 > sh64 (2010-01-19) v2.6.33-rc5~13^2 > parisc (2009-12-26) v2.6.34-rc1~13^2~6 > ARM (2010-08-15) v2.6.36-rc2~52^2~2 > sh (2010-12-13) v2.6.37-rc6~10^2 > alpha (2011-10-31) v3.2-rc1~108^2~58 > ia64 (2012-01-09) v3.3-rc1~73^2 > > Lots of arches are not listed above because they use the multiplexed > socketcall call and got support right away. (sh and sh64 provide both > the direct syscall and socketcall.) > > This patch was merged upstream during the 3.3 merge window and has > been in use in Debian's 3.2.y-based kernel since January. > > As long as libc was built to use the syscall, applying this patch > makes udev work properly again on ia64. What do you think? I'd accept it for the 3.0-stable kernel, but it doesn't apply, care to provide a backported version that does? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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