On Fri, Mar 20, 2015 at 10:44:56AM -0700, Jerry Jerry wrote: > Thanks, Neil, not sure if this is cause but I'll double check. > > Meanwhile, we hit another issue that checksctp hangs: > > > 83356 pts/0 D+ 0:00 checksctp > > And /proc/83356/stack shows: > > [<ffffffff8105f357>] call_usermodehelper_exec+0xc7/0xd0 > [<ffffffff8105f5a2>] __request_module+0x142/0x190 > [<ffffffff8134d3bb>] inet_create+0x10b/0x300 > [<ffffffff812e1aad>] __sock_create+0x12d/0x2c0 > [<ffffffff812e1f1d>] sys_socket+0x3d/0x70 > [<ffffffff81002f7b>] system_call_fastpath+0x16/0x1b > [<00007f29c4c2fa07>] 0x7f29c4c2fa07 > [<ffffffffffffffff>] 0xffffffffffffffff > This indicates that the kernel is attempting to demand load the sctp module. If its hung in purpituity, that means that the callout process (forked by call_usermodehelper_exec) is blocked. Look for the running modprobe process, and see whats blocking that. That will lead you a step closer to your root cause. > We have libsctp.so.1.0.16 under /usr/local/lib/ but rpm -V > lksctp-tools shows it's not installed. Could this matter, or there > might be other reasons? > No RHEL shipped rpm installs things to /usr/local/lib, ever. Sounds like perhaps you've built your own libsctp and installed it. As to which one is in use (the one in /usr/local/lib or the one in /usr/lib, where lksctp-tools rpm install libraries), is a matter of how your LD_LIBRARY_PATH is set. Neil > Regards, > Jerry > > On Fri, Mar 20, 2015 at 4:49 AM, Neil Horman <nhorman@xxxxxxxxxxxxx> wrote: > > On Thu, Mar 19, 2015 at 07:15:28PM -0700, Jerry Jerry wrote: > >> Hello everyone, > >> > >> We had another problem today, where modprobe shows an error in > >> /var/log/message when we ran an sctp application: > >> > >> modprobe: FATAL: Error inserting sctp > >> (/lib/modules/2.6.32.12-0.7-default/kernel/net/sctp/sctp.ko): Invalid > >> argument > >> > >> I'm wondering what might be possible causes of this and how should we > >> bypass this.... Appreciate any comments and suggestions. > >> > >> Regards, > >> Jerry > > EINVAL is returned by mod_sysfs_setup. Ostensibly its because you either > > specified a module option that doesn't exist, or because the module is already > > loaded. There could be other reasons, but those are the ones that pop > > immediately to mind. > > > > Neil > > > >> -- > >> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in > >> the body of a message to majordomo@xxxxxxxxxxxxxxx > >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >> > -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
