bl6-13, an x86_64 box listed on test.kernel.org, tripped on this during an LTP run, even with unify-queue_delayed_work-and-queue_delayed_work_on-fix.patch applied.
I'm not sure why the LTP results aren't copied over to TKO, but here's the details anyway. If someone can give me an idea where to look, I can start a bi-sect if it would help. kernel BUG at mm/swap.c:469! invalid opcode: 0000 [1] SMP last sysfs file: /devices/system/node/node0/cpumap CPU 1 Modules linked in: hidp rfcomm l2cap bluetooth sunrpc ipv6 video button battery asus_acpi ac lp parport_pc parport nvram pcspkr amd_rng rng_core i2c_amd756 i2c_core Pid: 19380, comm: mlockall01 Not tainted 2.6.20-mm1-autokern1 #1 RIP: 0010:[<ffffffff8026e007>] [<ffffffff8026e007>] __pagevec_lru_add_mlock+0x6f/0x108 RSP: 0018:ffff810022d0fdd8 EFLAGS: 00010002 RAX: 000000000011006c RBX: ffff81003ff41000 RCX: ffff81003ff40dc0 RDX: 0000000000000000 RSI: ffff810026df36b8 RDI: ffff81000000c480 RBP: ffff81000000bb00 R08: ffff8100212f0e40 R09: ffff81003ee13d84 R10: 0000000000000286 R11: 0000000000000246 R12: ffff81000502aae0 R13: 0000000000000000 R14: ffff81000501fd20 R15: 00000036d491a000 FS: 00002b212329b1e0(0000) GS:ffff81003ee13cc0(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002b2123283000 CR3: 0000000023fba000 CR4: 00000000000006e0 Process mlockall01 (pid: 19380, threadinfo ffff810022d0e000, task ffff81002ccdc080) Stack: ffff8100212f0e40 ffff81003ff7a1c0 000000003eb47020 00000036d490e000 ffff810031d31870 ffffffff8027387a 0000000000000000 ffff810022d0fed8 ffffffffffffffff 0000000000000000 ffff810026df36b8 ffff810022d0fee0 Call Trace: [<ffffffff8027387a>] unmap_vmas+0x43c/0x760 [<ffffffff802774fc>] exit_mmap+0x78/0xed [<ffffffff80230ca3>] mmput+0x45/0xb8 [<ffffffff80235ee7>] do_exit+0x23d/0x811 [<ffffffff80236537>] sys_exit_group+0x0/0xe [<ffffffff80209b6e>] system_call+0x7e/0x83 Code: 0f 0b eb fe f0 0f ba 2b 05 f0 0f ba 33 14 f0 0f ba 2b 06 be RIP [<ffffffff8026e007>] __pagevec_lru_add_mlock+0x6f/0x108 RSP <ffff810022d0fdd8> Fixing recursive fault but reboot is needed! BUG: spinlock lockup on CPU#3, syslogd/19381, ffff81000000c480 Call Trace: [<ffffffff80330047>] _raw_spin_lock+0xcf/0xf6 [<ffffffff8026e100>] __pagevec_lru_add_active+0x60/0xe3 [<ffffffff8027312f>] do_wp_page+0x3d8/0x485 [<ffffffff80274a5d>] __handle_mm_fault+0x96d/0x9e2 [<ffffffff804d1876>] do_page_fault+0x42b/0x7b1 [<ffffffff80246af3>] lock_hrtimer_base+0x1b/0x3c [<ffffffff804cf801>] _spin_unlock_irq+0x9/0xc [<ffffffff8023c175>] do_sigaction+0x16b/0x17f [<ffffffff80236c29>] do_setitimer+0x18e/0x336 [<ffffffff804cfc2d>] error_exit+0x0/0x84 -- 0:conmux-control -- time-stamp -- Feb/16/07 4:13:11 -- -- 0:conmux-control -- time-stamp -- Feb/16/07 5:22:45 -- BUG: spinlock lockup on CPU#0, portmap/1699, ffff81000000c480 Call Trace: [<ffffffff80330047>] _raw_spin_lock+0xcf/0xf6 [<ffffffff8026e1e4>] __pagevec_lru_add+0x61/0xe0 [<ffffffff8026e3aa>] __lru_add_drain+0x24/0x7e [<ffffffff80277324>] unmap_region+0x41/0x12c [<ffffffff8027808d>] do_munmap+0x1f9/0x276 [<ffffffff804cf1e0>] __down_write_nested+0x34/0x9e [<ffffffff8027814a>] sys_munmap+0x40/0x5a [<ffffffff80209b6e>] system_call+0x7e/0x83 -- Steve Fox IBM Linux Technology Center - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/