http://bugzilla.novell.com/show_bug.cgi?id=536549 User mmarek@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=536549#c1 Michal Marek changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |mmarek@novell.com Info Provider| |beensen@nld.ds.mpg.de --- Comment #1 from Michal Marek 2009-09-04 01:12:32 MDT --- Is there anything interesting in 'dmesg' output after the freeze? Does it work again if you downgrade to the previous kernel (http://download.opensuse.org/update/11.1/rpm/x86_64/?P=kernel-default%2A-2.6... -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 User beensen@nld.ds.mpg.de added comment http://bugzilla.novell.com/show_bug.cgi?id=536549#c3 --- Comment #3 from Yorck-Fabian Beensen 2009-09-07 02:35:53 MDT --- Created an attachment (id=316991) --> (http://bugzilla.novell.com/attachment.cgi?id=316991) /var/log/messages -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 User jnelson-suse@jamponi.net added comment http://bugzilla.novell.com/show_bug.cgi?id=536549#c5 Jon Nelson changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jnelson-suse@jamponi.net --- Comment #5 from Jon Nelson 2009-09-09 21:29:58 MDT --- I think I'm having a similar issue. See bug 533610 which may be related, however: for me the process that grows to 100% is *usually* but not always ksysguardd. Whichever process it is, attempts to strace it always fail (rather, they always hang and strace is not killable). The "100% process" is also unkillable. The iwlagn driver may also be involved, as 'rmmod iwlagn' never returns. I have the results of "echo t > /proc/sysrq-trigger" and "echo w > /proc/sysrq-trigger" available, if necessary. This kernel (2.6.27.29) has been a big bummer for me - reverting to 2.6.27.25 and the issues just go away. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 User jeffm@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=536549#c7 Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jeffm@novell.com --- Comment #7 from Jeff Mahoney 2009-09-09 21:52:04 MDT --- So I assume there was no oops, then? You're right on with your analysis of it begin wifi related. Sometimes when there are wierd mutex hangs, it can be because of an oops that went unnoticed. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 User beensen@nld.ds.mpg.de added comment http://bugzilla.novell.com/show_bug.cgi?id=536549#c9 --- Comment #9 from Yorck-Fabian Beensen 2009-09-10 01:59:57 MDT --- We don't have an oops, either. In our case, it cannot have anything to do with wifi, since the trouble appears also on machines where no wifi is installed. Our troubling process is also unkillable and it is always a different process (we saw "bash", "tcsh", "sh", "rpciod", "kurl_runner"). -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 User jnelson-suse@jamponi.net added comment http://bugzilla.novell.com/show_bug.cgi?id=536549#c11 --- Comment #11 from Jon Nelson 2009-09-21 18:36:09 MDT --- I had another hang today on a previously stable machine. "cp" was copying a small file (about 65K) and sat there and spun the CPU at 100%. It was unkillable, un-strace-able, and in other ways exhibited symptoms similar to the other processes. However, before the machine hung entirely I got an "echo t > /proc/sysrq-trigger" (or perhaps it was echo w, I don't recall....) Here it is: cp R running task 0 7793 5978 000000000000000e ffff88003a14e160 ffff880037014840 ffff88003adbd800 000000000000000e 0000000000000000 0000000000000000 000000000000000a 0000000000000000 0000000000000011 ffff88003a14e160 ffff880000000000 Call Trace: Inexact backtrace: [<ffffffff8041e2a2>] kernel_sendmsg+0x39/0x4f [<ffffffffa02f6e8b>] xs_send_kvec+0x78/0x7f [sunrpc] [<ffffffffa02f6f1b>] xs_sendpages+0x89/0x1a1 [sunrpc] [<ffffffffa02f7116>] xs_tcp_send_request+0x44/0x127 [sunrpc] [<ffffffffa02f55ca>] xprt_prepare_transmit+0x62/0x8c [sunrpc] [<ffffffffa02f3ab1>] rpc_xdr_encode+0xf8/0x155 [sunrpc] [<ffffffffa02f9eb2>] __rpc_execute+0x77/0x22d [sunrpc] [<ffffffffa02f4482>] rpc_run_task+0x4f/0x57 [sunrpc] [<ffffffffa02f4571>] rpc_call_sync+0x3d/0x5a [sunrpc] [<ffffffffa034f792>] nfs3_rpc_wrapper+0x19/0x50 [nfs] [<ffffffffa034fcf9>] nfs3_proc_access+0x12b/0x18c [nfs] [<ffffffff80211dcc>] read_tsc+0x9/0x1c [<ffffffff80255c55>] getnstimeofday+0x52/0xad [<ffffffff80252cf0>] ktime_get_ts+0x21/0x49 [<ffffffff8027f457>] delayacct_end+0x7d/0x88 [<ffffffffa0340f18>] nfs_do_access+0x15d/0x1c4 [nfs] [<ffffffffa0341059>] nfs_permission+0xda/0x142 [nfs] [<ffffffff802b8e11>] __inode_permission+0x7c/0xca [<ffffffff802b8e77>] path_permission+0x18/0x32 [<ffffffff802ba67f>] __link_path_walk+0x12c/0xd68 [<ffffffff802bb486>] path_walk+0x5e/0xba [<ffffffff802bb644>] do_path_lookup+0x162/0x1b9 [<ffffffff802ba4f1>] getname+0x13e/0x1a0 [<ffffffff802bbfdd>] user_path_at+0x48/0x79 [<ffffffff802b475d>] cp_new_stat+0xe9/0xfc [<ffffffff802b4a4e>] vfs_stat_fd+0x18/0x44 [<ffffffff802b4ad6>] sys_newstat+0x19/0x31 [<ffffffff8049d4a9>] error_exit+0x0/0x51 [<ffffffff8020bfbb>] system_call_fastpath+0x16/0x1b Does this help? 2.6.27.29 is really turning out to be a bummer for me. Is there anything I can do here? Would one of the other kernels help debug this? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 User jnelson-suse@jamponi.net added comment http://bugzilla.novell.com/show_bug.cgi?id=536549#c13 --- Comment #13 from Jon Nelson 2009-11-01 14:18:43 MST --- This continues to be a regression even with 2.6.27.37 It would appear that all kernels after 2.6.27.25 suffer from this issue. Today, attempts to suspend showed two processes: ksysgardd and keuphoria.kss (screen saver). keuphoria seemed to exit on its own ksysguardd cannot be straced (it's stuck in the kernel somewhere) however, unlike before, ksysguardd *can* be killed (regular 'kill' works) -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 http://bugzilla.novell.com/show_bug.cgi?id=536549#c16 Neil Brown changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO Info Provider| |jnelson-suse@jamponi.net --- Comment #16 from Neil Brown 2009-11-24 03:06:52 UTC --- I really need more data to be able to approach this problem. See comment #15 So setting needinfo to Jon in the hope that you can help... -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=536549 http://bugzilla.novell.com/show_bug.cgi?id=536549#c18 Neil Brown changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |RESOLVED Info Provider|jnelson-suse@jamponi.net | Resolution| |FIXED --- Comment #18 from Neil Brown 2009-11-24 10:31:27 UTC --- Great! Thanks for letting us know. I'll close the bug as 'fixed'. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.