I had some oops related to hardened using 4.1.3-hardened-r1, but those are gone after the advent of 4.1.3-hardened-r3 and so on. https://bugs.gentoo.org/show_bug.cgi?id=556262
I see two similar bug reports, I suppose: https://bugs.gentoo.org/show_bug.cgi?id=558280 is a duplicate... Am I right? I've been seeing intel-iommu.c glitches during early boot without any symptoms apart from the kernel log messages for some time now. It was introduced many kernel versions before and I cannot really get closer to it, since it is a really early log message. It is possibly related to this bug with the exception that my systems works just fine: https://bugs.gentoo.org/show_bug.cgi?id=558138 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at drivers/iommu/intel-iommu.c:3214 intel_unmap+0x146/0x200() Driver unmaps unmatched page at PFN 0 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.5-hardened-r1 #1 Hardware name: System manufacturer System Product Name/Z8P(N)E-D12(X), BIOS 1302 06/25/2012 0000000000000000 fafc4ab8f91ddaac ffffffff9819efbf 0000000000000000 ffffffff9819efbf ffffffff91e59d45 ffff880237c03d80 ffffffff910a9757 ffffffff9819efbf 0000000000000c8e ffffffff981de5b0 ffff8802361fcf68 Call Trace: <IRQ> [<ffffffff91e59d45>] ? dump_stack+0x40/0x56 [<ffffffff910a9757>] ? warn_slowpath_common+0x77/0xb0 [<ffffffff910a97fc>] ? warn_slowpath_fmt+0x6c/0x90 [<ffffffff916a7716>] ? intel_unmap+0x146/0x200 [<ffffffff9177a45e>] ? twa_interrupt+0x48e/0x780 [<ffffffff910f9c63>] ? handle_irq_event_percpu+0x73/0x120 [<ffffffff910f9d40>] ? handle_irq_event+0x30/0x50 [<ffffffff910fce58>] ? handle_fasteoi_irq+0x88/0x180 [<ffffffff91005385>] ? handle_irq+0x85/0x160 [<ffffffff910ce014>] ? atomic_notifier_call_chain+0x24/0x30 [<ffffffff91004c01>] ? do_IRQ+0x41/0xf0 [<ffffffff91e65c57>] ? common_interrupt+0x97/0x97 <EOI> [<ffffffff919d82c7>] ? cpuidle_enter_state+0xb7/0x160 [<ffffffff910eebfb>] ? cpu_startup_entry+0x27b/0x300 [<ffffffff9cc1507a>] ? start_kernel+0x4a9/0x4ca [<ffffffff9cc14120>] ? early_idt_handler_array+0x120/0x120 [<ffffffff9cc145f7>] ? x86_64_start_kernel+0x10b/0x12f ---[ end trace a7906508600bc5fc ]--- Any ideas? Bye: Dw. -- dr Tóth Attila, Radiológus, 06-20-825-8057 Attila Toth MD, Radiologist, +36-20-825-8057 2015.Augusztus 20.(Cs) 16:56 időpontban Alex Efros ezt írta: > Hi! > > Subj happens on my 2 servers with different hardware, but both servers are > 32-bit. So, be careful when upgrading to 4.1.4-hardened on 32-bit systems. > > https://bugs.gentoo.org/show_bug.cgi?id=558282 > > -- > WBR, Alex. >
