| SHA1 | ||
|---|---|---|
.. since it uses ILL_BADSTK (which is meaningless in the context of SIGSEGV). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Jan Beulich
authored and
 Ingo Molnar
commited |
79bf0e0353 | |
Only allocate the FPU area when the application actually uses FPU, i.e., in the first lazy FPU trap. This could save memory for non-fpu using apps. for example: on my system after boot, there are around 300 processes, with only 17 using FPU. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Suresh Siddha
authored and
Ingo Molnar
commited |
aa283f4927 | |
Split the FPU save area from the task struct. This allows easy migration of FPU context, and it's generally cleaner. It also allows the following two optimizations: 1) only allocate when the application actually uses FPU, so in the first lazy FPU trap. This could save memory for non-fpu using apps. Next patch does this lazy allocation. 2) allocate the right size for the actual cpu rather than 512 bytes always. Patches enabling xsave/xrstor support (coming shortly) will take advantage of this. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Suresh Siddha
authored and
Ingo Molnar
commited |
61c4628b53 | |
This annotates NMI functions with notrace. Some tracers may be able to live with this, but some cannot. The safest is to turn it off, it's not particularly interesting anyway. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Steven Rostedt
authored and
Ingo Molnar
commited |
5deb45e39b | |
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb: kgdb: always use icache flush for sw breakpoints kgdb: fix SMP NMI kgdb_handle_exception exit race kgdb: documentation fixes kgdb: allow static kgdbts boot configuration kgdb: add documentation kgdb: Kconfig fix kgdb: add kgdb internal test suite kgdb: fix several kgdb regressions kgdb: kgdboc pl011 I/O module kgdb: fix optional arch functions and probe_kernel_* kgdb: add x86 HW breakpoints kgdb: print breakpoint removed on exception kgdb: clocksource watchdog kgdb: fix NMI hangs kgdb: fix kgdboc dynamic module configuration kgdb: document parameters x86: kgdb support consoles: polling support, kgdboc kgdb: core uaccess: add probe_kernel_write() 
Linus Torvalds
commited |
9732b61123 | |
This patch fixes the hang regression with kgdb when the NMI interrupt comes in while the master core is returning from an exception. Adjust the NMI logic such that KGDB will not stop NMI exceptions from occurring by in general returning NOTIFY_DONE. It is not possible to distinguish the debug NMI sync vs the normal NMI apic interrupt so kgdb needs to catch the unknown NMI if it the debugger was previously active on one of the cpus. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Jason Wessel
authored and
Ingo Molnar
commited |
d359752407 | |
This patch renames VM_MASK to X86_VM_MASK (which in turn defined as alias to X86_EFLAGS_VM) to better distinguish from virtual memory flags. We can't just use X86_EFLAGS_VM instead because it is also used for conditional compilation Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
gorcunov@gmail.com
authored and
Ingo Molnar
commited |
6b6891f9c5 | |
- fix build error - fix CONFIG_HEADERS_CHECK error Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar
commited |
6093015db2 | |
Before: total: 86 errors, 29 warnings, 1248 lines checked After: total: 0 errors, 17 warnings, 1281 lines checked No code changed: arch/x86/kernel/traps_32.o: text data bss dec hex filename 8711 2168 72 10951 2ac7 traps_32.o.before 8711 2168 72 10951 2ac7 traps_32.o.after (md5 sums differ because some stack offset positions changed.) Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar
commited |
b5964405fb | |
This was being used to ensure the proper alignment of the FXSAVE/FXRSTOR data. This would create a sparse error in the _correct_ cases, hiding further warnings. Use BUILD_BUG_ON instead. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Harvey Harrison
authored and
Ingo Molnar
commited |
deef79ef35 | |
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ingo Molnar
commited |
927222b102 | |
Small fomatting fixes to 64-bit as well, trailing whitespace and extra semicolon, also move the ifdefs for CONFIG_KALLSYMS into the function itself. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison
authored and
Ingo Molnar
commited |
a5ff677c2f | |
They now look like: hal-resmgr[13791]: segfault at 3c rip 2b9c8caec182 rsp 7fff1e825d30 error 4 in libacl.so.1.1.0[2b9c8caea000+6000] This makes it easier to pinpoint bugs to specific libraries. And printing the offset into a mapping also always allows to find the correct fault point in a library even with randomized mappings. Previously there was no way to actually find the correct code address inside the randomized mapping. Relies on earlier patch to shorten the printk formats. They are often now longer than 80 characters, but I think that's worth it. [includes fix from Eric Dumazet to check d_path error value] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Andi Kleen
authored and
Ingo Molnar
commited |
03252919b7 | |
Right now, we take the stack pointer early during the backtrace path, but only calculate bp several functions deep later, making it hard to reconcile the stack and bp backtraces (as well as showing several internal backtrace functions on the stack with bp based backtracing). This patch moves the bp taking to the same place we take the stack pointer; sadly this ripples through several layers of the back tracing stack, but it's not all that bad in the end I hope. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Arjan van de Ven
authored and
Ingo Molnar
commited |
5bc27dc2f5 | |
The 32 bit Frame Pointer backtracer code checks if the EBP is valid to do a backtrace; however currently on a failure it just gives up and prints nothing. That's not very nice; we can do better and still print a decent backtrace. This patch changes the backtracer to use the regular backtracing algorithm at the same time as the EBP backtracer; the EBP backtracer is basically used to figure out which part of the backtrace are reliable vs those which are likely to be noise. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Arjan van de Ven
authored and
Ingo Molnar
commited |
e9d4efddbe | |
For enhancing the 32 bit EBP based backtracer, I need the capability for the backtracer to tell it's customer that an entry is either reliable or unreliable, and the backtrace printing code then needs to print the unreliable ones slightly different. This patch adds the basic capability, the next patch will add a user of this capability. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Arjan van de Ven
authored and
Ingo Molnar
commited |
bc850d6b37 | |
The current x86 32 bit FRAME_POINTER chasing code has a nasty bug in that the EBP tracer doesn't actually update the value of EBP it is tracing, so that the code doesn't actually switch to the irq stack properly. The result is a truncated backtrace: WARNING: at timeroops.c:8 kerneloops_regression_test() (Not tainted) Pid: 0, comm: swapper Not tainted 2.6.24-0.77.rc4.git4.fc9 #1 [<c040649a>] show_trace_log_lvl+0x1a/0x2f [<c0406d41>] show_trace+0x12/0x14 [<c0407061>] dump_stack+0x6c/0x72 [<e0258049>] kerneloops_regression_test+0x44/0x46 [timeroops] [<c04371ac>] run_timer_softirq+0x127/0x18f [<c0434685>] __do_softirq+0x78/0xff [<c0407759>] do_softirq+0x74/0xf7 ======================= This patch fixes the code to update EBP properly, and to check the EIP before printing (as the non-framepointer backtracer does) so that the same test backtrace now looks like this: WARNING: at timeroops.c:8 kerneloops_regression_test() Pid: 0, comm: swapper Not tainted 2.6.24-rc7 #4 [<c0405d17>] show_trace_log_lvl+0x1a/0x2f [<c0406681>] show_trace+0x12/0x14 [<c0406ef2>] dump_stack+0x6a/0x70 [<e01f6040>] kerneloops_regression_test+0x3b/0x3d [timeroops] [<c0426f07>] run_timer_softirq+0x11b/0x17c [<c04243ac>] __do_softirq+0x42/0x94 [<c040704c>] do_softirq+0x50/0xb6 [<c04242a9>] irq_exit+0x37/0x67 [<c040714c>] do_IRQ+0x9a/0xaf [<c04057da>] common_interrupt+0x2e/0x34 [<c05807fe>] cpuidle_idle_call+0x52/0x78 [<c04034f3>] cpu_idle+0x46/0x60 [<c05fbbd3>] rest_init+0x43/0x45 [<c070aa3d>] start_kernel+0x279/0x27f ======================= This shows that the backtrace goes all the way down to user context now. This bug was found during the port to 64 bit of the frame pointer backtracer. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Arjan van de Ven
authored and
Ingo Molnar
commited |
3d1f7cae88 | |
Small step towards unifying traps_32|64.c. No functional changes. Pull out a small helper from an if() statement in die(). Marked as __kprobes as eventually we will want to call this from do_page_fault similar to how X86_64 does it. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison
authored and
Ingo Molnar
commited |
a604b38036 | |
fastcall is always defined to be empty, remove it from arch/x86 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison
authored and
Ingo Molnar
commited |
75604d7f7f | |
This patch moves _set_gate and its users to desc.h. We can now use common code for x86_64 and i386. [ mingo@elte.hu: set_system_gate() fixes for nasty crashes. ] Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Glauber de Oliveira Costa
authored and
Ingo Molnar
commited |
507f90c9f9 | |
To account for the differences in gate descriptor in i386 and x86_64 a gate_desc type is introduced. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Glauber de Oliveira Costa
authored and
Ingo Molnar
commited |
010d4f8221 | |
This patch aims to make the access of struct desc_struct variables equal across architectures. In this patch, I unify the i386 and x86_64 versions under an anonymous union, keeping the way they are accessed untouched (a and b for 32-bit code, individual bit-fields for 64-bit). This solution is not beautiful, but will allow us to integrate common code that differed by the way descriptors were used. This is to be viewed incrementally. There's simply too much code to be fixed at once. In the future, goal is to set up in a single way of acessing the desc_struct fields. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Glauber de Oliveira Costa
authored and
Ingo Molnar
commited |
6842ef0e85 | |
This changes size-specific register names (eip/rip, esp/rsp, etc.) to generic names in the thread and tss structures. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
H. Peter Anvin
authored and
Ingo Molnar
commited |
faca62273b | |
This replaces the debugreg[7] member of thread_struct with individual members debugreg0, etc. This saves two words for the dummies 4 and 5, and harmonizes the code between 32 and 64. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Roland McGrath
authored and
Ingo Molnar
commited |
0f5340933f | |
We have a lot of code which differs only by the naming of specific members of structures that contain registers. In order to enable additional unifications, this patch drops the e- or r- size prefix from the register names in struct pt_regs, and drops the x- prefixes for segment registers on the 32-bit side. This patch also performs the equivalent renames in some additional places that might be candidates for unification in the future. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin
authored and
Ingo Molnar
commited |
65ea5b0349 | |
This implements user-mode step-until-branch on x86 using the BTF bit in MSR_IA32_DEBUGCTLMSR. It's just like single-step, only less so. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Roland McGrath
authored and
Ingo Molnar
commited |
10faa81e10 | |
On Sat, 2007-12-29 at 18:06 +0100, Marcin Slusarz wrote: > Hi > Today I've got this (while i was upgrading my gentoo box): > > WARNING: at kernel/lockdep.c:2658 check_flags() > Pid: 21680, comm: conftest Not tainted 2.6.24-rc6 #63 > > Call Trace: > [<ffffffff80253457>] check_flags+0x1c7/0x1d0 > [<ffffffff80257217>] lock_acquire+0x57/0xc0 > [<ffffffff8024d5c0>] __atomic_notifier_call_chain+0x60/0xd0 > [<ffffffff8024d641>] atomic_notifier_call_chain+0x11/0x20 > [<ffffffff8024d67e>] notify_die+0x2e/0x30 > [<ffffffff8020da0a>] do_divide_error+0x5a/0xa0 > [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a > [<ffffffff80255b89>] trace_hardirqs_on+0xd9/0x180 > [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a > [<ffffffff80523c2d>] error_exit+0x0/0xa9 > > possible reason: unannotated irqs-off. > irq event stamp: 4693 > hardirqs last enabled at (4693): [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a > hardirqs last disabled at (4692): [<ffffffff80522c17>] trace_hardirqs_off_thunk+0x35/0x37 > softirqs last enabled at (3546): [<ffffffff80238343>] __do_softirq+0xb3/0xd0 > softirqs last disabled at (3521): [<ffffffff8020c97c>] call_softirq+0x1c/0x30 more early fixups for notify_die().. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Peter Zijlstra
commited |
fb1dac909d | |
Andrew "Eagle Eye" Morton noticed that we use raw_local_save_flags()
instead of raw_local_irq_save(flags) in die(). This allows the
preemption of oopsing contexts - which is highly undesirable. It also
causes CONFIG_DEBUG_PREEMPT to complain, as reported by Miles Lane.
this bug was introduced via:
commit
Ingo Molnar
commited |
c0a698b744 | |
Ensure the hardirq state is consistent before using locks. Use the rare trace_hardirqs_fixup() because the trap can happen in any context. resolves this rare lockdep warning: WARNING: at kernel/lockdep.c:2658 check_flags() [<c013571e>] check_flags+0x90/0x140 [<c0138a69>] lock_release+0x4b/0x1d0 [<c0507fea>] notifier_call_chain+0x2a/0x47 [<c050806b>] __atomic_notifier_call_chain+0x64/0x6d [<c0508007>] __atomic_notifier_call_chain+0x0/0x6d [<c050808b>] atomic_notifier_call_chain+0x17/0x1a [<c0131802>] notify_die+0x30/0x34 [<c0506b09>] do_debug+0x3e/0xd4 [<c050658f>] debug_stack_correct+0x27/0x2c [<c04be389>] tcp_rcv_established+0x1/0x620 [<c04c38c2>] tcp_v4_do_rcv+0x2b/0x313 [<c04c56b6>] tcp_v4_rcv+0x467/0x85d [<c0505ff2>] _spin_lock_nested+0x27/0x32 [<c04c5a4d>] tcp_v4_rcv+0x7fe/0x85d [<c04c560e>] tcp_v4_rcv+0x3bf/0x85d [<c04adbb5>] ip_local_deliver_finish+0x11b/0x1b0 [<c04adac8>] ip_local_deliver_finish+0x2e/0x1b0 [<c04ada7b>] ip_rcv_finish+0x27b/0x29a [<c04961e5>] netif_receive_skb+0xfb/0x2a6 [<c04add0f>] ip_rcv+0x0/0x1fb [<c0496354>] netif_receive_skb+0x26a/0x2a6 [<c04961e5>] netif_receive_skb+0xfb/0x2a6 [<c049872e>] process_backlog+0x7f/0xc6 [<c04983ba>] net_rx_action+0xb9/0x1ac [<c0498348>] net_rx_action+0x47/0x1ac [<c01376cb>] trace_hardirqs_on+0x118/0x16b [<c01225e2>] __do_softirq+0x49/0xa2 [<c010595f>] do_softirq+0x60/0xdd [<c0506300>] _spin_unlock_irq+0x20/0x2c [<c0103e4f>] restore_nocheck+0x12/0x15 [<c01440e1>] handle_fasteoi_irq+0x0/0x9b [<c0105a70>] do_IRQ+0x94/0xaa [<c0506300>] _spin_unlock_irq+0x20/0x2c [<c0104832>] common_interrupt+0x2e/0x34 [<c0114703>] native_safe_halt+0x2/0x3 [<c0102c01>] default_idle+0x44/0x65 [<c010257f>] cpu_idle+0x42/0x50 [<c076ea09>] start_kernel+0x26b/0x270 [<c076e317>] unknown_bootoption+0x0/0x196 ======================= irq event stamp: 559190 hardirqs last enabled at (559190): [<c0507316>] kprobe_exceptions_notify+0x299/0x305 hardirqs last disabled at (559189): [<c05067bf>] do_int3+0x1d/0x95 softirqs last enabled at (559172): [<c010595f>] do_softirq+0x60/0xdd softirqs last disabled at (559181): [<c010595f>] do_softirq+0x60/0xdd Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Peter Zijlstra
authored and
Ingo Molnar
commited |
000f4a9e71 | |
today, all oopses contain a version number of the kernel, which is nice because the people who actually do bother to read the oops get this vital bit of information always without having to ask the reporter in another round trip. However, WARN_ON() and many other dump_stack() users right now lack this information; the patch below adds this. This information is essential for getting people to use their time effectively when looking at these things; in addition, it's essential for tools that try to collect statistics about defects. Please consider, since its so simple and important for long term kernel quality processes. The code is identical between 32/64 bit; a lot of this code should be unified over time, the patch keeps the identical-ness intact. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Arjan van de Ven
authored and
Ingo Molnar
commited |
57c351de71 | |
Ensure we fixup the IRQ state before we hit any locking code. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra
commited |
143a5d325d | |
* ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (33 commits) x86: convert cpuinfo_x86 array to a per_cpu array x86: introduce frame_pointer() and stack_pointer() x86 & generic: change to __builtin_prefetch() i386: do not BUG_ON() when MSR is unknown x86: acpi use cpu_physical_id x86: convert cpu_llc_id to be a per cpu variable x86: convert cpu_to_apicid to be a per cpu variable i386: introduce "used_vectors" bitmap which can be used to reserve vectors. x86: use raw locks during oopses x86: honor _PAGE_PSE bit on page walks i386: do cpuid_device_create() in CPU_UP_PREPARE instead of CPU_ONLINE. x86: implement missing x86_64 function smp_call_function_mask() x86: use descriptor's functions instead of inline assembly i386: consolidate show_regs and show_registers for i386 i386: make callgraph use dump_trace() on i386/x86_64 x86: enable iommu_merge by default i386: i386 add AMD64 Barcelona PMU MSR definitions to msr.h x86: Unify i386 and x86-64 early quirks x86: enable HPET on ICH3 and ICH4 x86: force enable HPET on VT8235/8237 chipsets ... Manually fix trivial conflict with task pid container helper changes in arch/x86/kernel/process_32.c 
Linus Torvalds
commited |
60812a4a99 | |
One of the easiest things to isolate is the pid printed in kernel log. There was a patch, that made this for arch-independent code, this one makes so for arch/xxx files. It took some time to cross-compile it, but hopefully these are all the printks in arch code. Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Alexey Dobriyan
authored and
Linus Torvalds
commited |
19c5870c0e | |
This simplifies the io_apic.c __assign_irq_vector() logic and removes the explicit SYSCALL_VECTOR check, and also allows for vectors to be reserved by other mechanisms (ie. lguest). [ tglx: arch/x86 adaptation ] Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Rusty Russell
authored and
 Thomas Gleixner
commited |
dbeb2be21d | |
Don't want any lockdep or other fragile machinery to run during oopses. Use raw spinlocks directly for oops locking. Also disables irq flag tracing there. [ tglx: arch/x86 adaptation ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen
authored and
Thomas Gleixner
commited |
39743c9ef7 | |
Both functions printk the same information, except for CRx and debug registers in the show_registers() one and a bit different manner. So move the common code into one place. This is already done for x86_64, so I think it's worth having the same on i386. This saves 100 bytes of .rodata section :) ... but only 8 from .text :( [ tglx: arch/x86 adaptation ] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Pavel Emelyanov
authored and
Thomas Gleixner
commited |
9d975ebda5 | |
Typically the oops first lines look like this: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c049dfbd *pde = 00000000 Oops: 0002 [#1] PREEMPT SMP ... Such output is gained with some ugly if (!nl) printk("\n"); code and besides being a waste of lines, this is also annoying to read. The following output looks better (and it is how it looks on x86_64): BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c049dfbd *pde = 00000000 Oops: 0002 [#1] PREEMPT SMP ... [ tglx: arch/x86 adaptation ] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pavel Emelyanov
authored and
 Thomas Gleixner
commited |
9aa8d7195a | |
.. as they're never written to. [ tglx: arch/x86 adaptation ] Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Jan Beulich
authored and
Thomas Gleixner
commited |
9689ba8ad0 | |
Fix following section mismatch warning: WARNING: vmlinux.o(.text+0xc88c): Section mismatch: reference to .init.text:trap_init_f00f_bug (between 'init_intel' and 'cpuid4_cache_lookup') init_intel are __cpuint where trap_init_f00f_bug is __init. Fixed by declaring trap_init_f00f_bug __cpuinit. Moved the defintion of trap_init_f00f_bug to the sole user in init.c so the ugly prototype in intel.c could get killed. Frank van Maarseveen <frankvm@frankvm.com> supplied the .config used to reproduce the warning. [ tglx: arch/x86 adaptation ] Cc: Frank van Maarseveen <frankvm@frankvm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Sam Ravnborg
authored and
Thomas Gleixner
commited |
d72b1b4f41 | |
Since the x86 merge, lots of files that referenced their own filenames are no longer correct. Rather than keep them up to date, just delete them, as they add no real value. Additionally: - fix up comment formatting in scx200_32.c - Remove a credit from myself in setup_64.c from a time when we had no SCM - remove longwinded history from tsc_32.c which can be figured out from git. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Dave Jones
authored and
Linus Torvalds
commited |
835c34a168 | |
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner
commited |
9a163ed8e0 |
Renamed from arch/i386/kernel/traps_32.c (Browse further)