search for: smp_locks

I have an older server I am trying to update to CentOS 4.3 but I can't get to the installer screen because the machine kernel panics when booted from the install CD. The error message I get is: Kernel panic - not syncing: include/linux/smp_lock.h:25 spin_unlock(kernel/sched.c:c035) not locked The boot messages before this point are mainly to do with acpi including: acpi_ps_parse_anl

...ck) RING0_EC_FRAME diff -r e698e6ee2fa1 include/asm-i386/alternative-asm.i --- a/include/asm-i386/alternative-asm.i Tue Aug 08 10:18:34 2006 -0700 +++ b/include/asm-i386/alternative-asm.i Tue Aug 08 10:33:13 2006 -0700 @@ -3,10 +3,10 @@ #ifdef CONFIG_SMP .macro LOCK_PREFIX 1: lock - .section .smp_locks,"a" + .pushsection .smp_locks,"a" .align 4 .long 1b - .previous + .popsection .endm #else .macro LOCK_PREFIX diff -r e698e6ee2fa1 include/linux/linkage.h --- a/include/linux/linkage.h Tue Aug 08 10:18:34 2006 -0700 +++ b/include/linux/linkage.h Tue Aug 08 10:35:55 2006...

...ck) RING0_EC_FRAME diff -r e698e6ee2fa1 include/asm-i386/alternative-asm.i --- a/include/asm-i386/alternative-asm.i Tue Aug 08 10:18:34 2006 -0700 +++ b/include/asm-i386/alternative-asm.i Tue Aug 08 10:33:13 2006 -0700 @@ -3,10 +3,10 @@ #ifdef CONFIG_SMP .macro LOCK_PREFIX 1: lock - .section .smp_locks,"a" + .pushsection .smp_locks,"a" .align 4 .long 1b - .previous + .popsection .endm #else .macro LOCK_PREFIX diff -r e698e6ee2fa1 include/linux/linkage.h --- a/include/linux/linkage.h Tue Aug 08 10:18:34 2006 -0700 +++ b/include/linux/linkage.h Tue Aug 08 10:35:55 2006...

Hi Andi, Here's a little batch of cleanups: - re-enable VDSO when PARAVIRT is enabled - make the parainstructions symbols match the other altinstructions naming convention - add kernel command-line options to disable altinstructions for smp and pv_ops Oh, and I'm mailing your noreplacement patch back at you, for no particularly good reason. J --

Hi Andi, Here's a little batch of cleanups: - re-enable VDSO when PARAVIRT is enabled - make the parainstructions symbols match the other altinstructions naming convention - add kernel command-line options to disable altinstructions for smp and pv_ops Oh, and I'm mailing your noreplacement patch back at you, for no particularly good reason. J --

...irst = ACCESS_ONCE(head->first); } while (cmpxchg(&head->first, first, new_first) != first); return !first; } The generated code in the IR for the cmpxchg call is: %struct.llist_node = type { %struct.llist_node* } %tmp8 = tail call %struct.llist_node* asm sideeffect ".pushsection .smp_locks,\22a\22\0A.balign 4\0A.long 671f - .\0A.popsection\0A671:\0A\09lock; cmpxchgq $2,$1", "={ax},=*m,r,0,*m,~{memory},~{dirflag},~{fpsr},~{flags}"(i64* %tmp2, %struct.llist_node* %tmp7, %struct.llist_node* %entry.0, i64* %tmp2) Can someone explain how cmpxchg can receive a struct type?...

(untested) There are several files that #include "linux/file" not #include <linux/file> #include "asm/file" not #include <asm/file> Here's a little script that converts them: egrep -i -r -l --include=*.[ch] \ "^[[:space:]]*\#[[:space:]]*include[[:space:]]*\"(linux|asm)/(.*)\"" * \ | xargs sed -i -e

(untested) There are several files that #include "linux/file" not #include <linux/file> #include "asm/file" not #include <asm/file> Here's a little script that converts them: egrep -i -r -l --include=*.[ch] \ "^[[:space:]]*\#[[:space:]]*include[[:space:]]*\"(linux|asm)/(.*)\"" * \ | xargs sed -i -e

hello, Chris In the next several months, I will have a lot of spare time. I will be happy if you assign some work to me. I have learn linux kernel for years but only fix a few small bugs in IP stack. In the past few months, I read some EXT4/VFS codes. I began reading source of btrfs ten days ago and have read it twice now. Regards YZ

.../arch/x86/include/asm/alternative-asm.h index 8e4ea39..31b627b 100644 --- a/arch/x86/include/asm/alternative-asm.h +++ b/arch/x86/include/asm/alternative-asm.h @@ -7,24 +7,16 @@ #include <asm/asm.h> #ifdef CONFIG_SMP -.macro LOCK_PREFIX_HERE + .macro LOCK_PREFIX +672: lock .pushsection .smp_locks,"a" .balign 4 - .long 671f - . # offset + .long 672b - . .popsection -671: -.endm - -.macro LOCK_PREFIX insn:vararg - LOCK_PREFIX_HERE - lock \insn -.endm + .endm #else -.macro LOCK_PREFIX_HERE -.endm - -.macro LOCK_PREFIX insn:vararg -.endm + .macro LOCK_PREFIX + .endm #endif /...

Hello! I like to announce sch_ooo, a new queue discipline that, attached to a class (or a device, as root) reorder the packets that pass by delaying some. Example: tc qdisc add dev eth0 root ooo limit 100 gap 4 wait 1100 This queue will create a pfifo with limit 100 and will delay every 4th packet with 1100ms. An stream of 6 packets like this: 1 2 3 4 5 6, generated by ping will be reordered

.../arch/x86/include/asm/alternative-asm.h index 8e4ea39..31b627b 100644 --- a/arch/x86/include/asm/alternative-asm.h +++ b/arch/x86/include/asm/alternative-asm.h @@ -7,24 +7,16 @@ #include <asm/asm.h> #ifdef CONFIG_SMP -.macro LOCK_PREFIX_HERE + .macro LOCK_PREFIX +672: lock .pushsection .smp_locks,"a" .balign 4 - .long 671f - . # offset + .long 672b - . .popsection -671: -.endm - -.macro LOCK_PREFIX insn:vararg - LOCK_PREFIX_HERE - lock \insn -.endm + .endm #else -.macro LOCK_PREFIX_HERE -.endm - -.macro LOCK_PREFIX insn:vararg -.endm + .macro LOCK_PREFIX + .endm #endif /...

.../arch/x86/include/asm/alternative-asm.h index 8e4ea39..31b627b 100644 --- a/arch/x86/include/asm/alternative-asm.h +++ b/arch/x86/include/asm/alternative-asm.h @@ -7,24 +7,16 @@ #include <asm/asm.h> #ifdef CONFIG_SMP -.macro LOCK_PREFIX_HERE + .macro LOCK_PREFIX +672: lock .pushsection .smp_locks,"a" .balign 4 - .long 671f - . # offset + .long 672b - . .popsection -671: -.endm - -.macro LOCK_PREFIX insn:vararg - LOCK_PREFIX_HERE - lock \insn -.endm + .endm #else -.macro LOCK_PREFIX_HERE -.endm - -.macro LOCK_PREFIX insn:vararg -.endm + .macro LOCK_PREFIX + .endm #endif /...

Summary: Changeset 10173 - 64bit UP and SMP guests boot cleanly - 32bit UP guests boot clean and 32bit SMP guests still fail to boot (see failure.7) - 32bit UP guests lockup under load with "ata1: command 0x25 timeout" (see failure.4) - 64bit SMP 2 CPU guests lockup under load with "ata1: command 0x25 timeout" (see failure.2) - 32bit UP guest crashed on user load test

OK, I need to do something like this to io_apic.c - split the hardware specific parts out under mach-default, so we can override them for other subarchitectures. It's not finished, needs header file and makefile work. Would you be willing to take this if I do it? I'm not going to bother if you're not, such refactorings are a pig to maintain out of tree. Frankly, io_apic.c needs a

OK, I need to do something like this to io_apic.c - split the hardware specific parts out under mach-default, so we can override them for other subarchitectures. It's not finished, needs header file and makefile work. Would you be willing to take this if I do it? I'm not going to bother if you're not, such refactorings are a pig to maintain out of tree. Frankly, io_apic.c needs a

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 9/9] Guest page hinting: full s390 support. s390 uses the milli-coded ESSA instruction to set the page state. The page state is formed by four guest page states called block usage states and three host page states called block content

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 9/9] Guest page hinting: full s390 support. s390 uses the milli-coded ESSA instruction to set the page state. The page state is formed by four guest page states called block usage states and three host page states called block content

...t __read_mostly alternatives_patched; @@ -269,6 +270,7 @@ static void __init_or_module add_nops(void *insns, unsigned int len) } extern struct alt_instr __alt_instructions[], __alt_instructions_end[]; +extern struct alt_instr __pv_alt_instructions[], __pv_alt_instructions_end[]; extern s32 __smp_locks[], __smp_locks_end[]; void *text_poke_early(void *addr, const void *opcode, size_t len); @@ -598,6 +600,17 @@ int alternatives_text_reserved(void *start, void *end) #endif /* CONFIG_SMP */ #ifdef CONFIG_PARAVIRT +/* + * Paravirt alternatives are applied much earlier than normal alternatives....

...dr *s, *text = NULL, *alt = NULL, *locks = NULL, + *para = NULL; char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { @@ -118,6 +119,8 @@ int module_finalize(const Elf_Ehdr *hdr, alt = s; if (!strcmp(".smp_locks", secstrings + s->sh_name)) locks= s; + if (!strcmp(".parainstructions", secstrings + s->sh_name)) + para = s; } if (alt) { @@ -132,6 +135,10 @@ int module_finalize(const Elf_Ehdr *hdr, lseg, lseg + locks->sh_size, tseg, tseg + text->sh_si...