search for: log_buf

While working on can_FOO caching, at one point I got confused by whether 'readonly' meant the global set by -r or a local passed to .open(). A quick attempt to compile with -Wshadow found several other confusing points; this series gets us to the point that we can add -Wshadow to builds with --enable-gcc-warnings. Eric Blake (10): server: Avoid -Wshadow warnings guestfs: Avoid

...scall as follows: memset(&attr, 0, sizeof(attr)); attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER; attr.insn_cnt = ARRAY_SIZE(l3_l4_hash_insns); attr.insns = (__u64) (unsigned long) (l3_l4_hash_insns); attr.license = (__u64) (unsigned long) ("Dual BSD/GPL"); attr.log_buf = (__u64) (unsigned long) (buffer); attr.log_level = 7; attr.log_size = BUFF_LEN; attr.kern_version = 0; ret = sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr)); I am not sure how to debug this error since the instructions are in binary and the precompiled source code doesn't se...

...uot;, buffer); > + mpsslog("%s: Command line: \"%s\"\n", mic->name, buffer); > + snprintf(buffer, PATH_MAX, "172.31.%d.1", mic->id); > + mpsslog("%s: IPADDR: \"%s\"\n", mic->name, buffer); > +} > + > +static void > +set_log_buf_info(struct mic_info *mic) > +{ > + int fd; > + off_t len; > + char system_map[] = "/lib/firmware/mic/System.map"; > + char *map, *temp, log_buf[17] = {'\0'}; > + > + fd = open(system_map, O_RDONLY); > + if (fd < 0) { > + mpsslog("%s: Opening Sy...

...uot;, buffer); > + mpsslog("%s: Command line: \"%s\"\n", mic->name, buffer); > + snprintf(buffer, PATH_MAX, "172.31.%d.1", mic->id); > + mpsslog("%s: IPADDR: \"%s\"\n", mic->name, buffer); > +} > + > +static void > +set_log_buf_info(struct mic_info *mic) > +{ > + int fd; > + off_t len; > + char system_map[] = "/lib/firmware/mic/System.map"; > + char *map, *temp, log_buf[17] = {'\0'}; > + > + fd = open(system_map, O_RDONLY); > + if (fd < 0) { > + mpsslog("%s: Opening Sy...

...sysfs(mic->name, "cmdline", buffer); + mpsslog("%s: Command line: \"%s\"\n", mic->name, buffer); + snprintf(buffer, PATH_MAX, "172.31.%d.1", mic->id); + mpsslog("%s: IPADDR: \"%s\"\n", mic->name, buffer); +} + +static void +set_log_buf_info(struct mic_info *mic) +{ + int fd; + off_t len; + char system_map[] = "/lib/firmware/mic/System.map"; + char *map, *temp, log_buf[17] = {'\0'}; + + fd = open(system_map, O_RDONLY); + if (fd < 0) { + mpsslog("%s: Opening System.map failed: %d\n", + mic->name...

...= surface_id; @@ -407,20 +404,6 @@ void qxl_io_memslot_add(struct qxl_device *qdev, uint8_t id) wait_for_io_cmd(qdev, id, QXL_IO_MEMSLOT_ADD_ASYNC); } -void qxl_io_log(struct qxl_device *qdev, const char *fmt, ...) -{ - va_list args; - - va_start(args, fmt); - vsnprintf(qdev->ram_header->log_buf, QXL_LOG_BUF_SIZE, fmt, args); - va_end(args); - /* - * DO not do a DRM output here - this will call printk, which will - * call back into qxl for rendering (qxl_fb) - */ - outb(0, qdev->io_base + QXL_IO_LOG); -} - void qxl_io_reset(struct qxl_device *qdev) { outb(0, qdev->io_base + QX...

...= surface_id; @@ -407,20 +404,6 @@ void qxl_io_memslot_add(struct qxl_device *qdev, uint8_t id) wait_for_io_cmd(qdev, id, QXL_IO_MEMSLOT_ADD_ASYNC); } -void qxl_io_log(struct qxl_device *qdev, const char *fmt, ...) -{ - va_list args; - - va_start(args, fmt); - vsnprintf(qdev->ram_header->log_buf, QXL_LOG_BUF_SIZE, fmt, args); - va_end(args); - /* - * DO not do a DRM output here - this will call printk, which will - * call back into qxl for rendering (qxl_fb) - */ - outb(0, qdev->io_base + QXL_IO_LOG); -} - void qxl_io_reset(struct qxl_device *qdev) { outb(0, qdev->io_base + QX...

Hi, things are progressing slowly, but I feel that eventually I'll be getting there: supermin can be built on all Linux-based architectures that are part of Debian/unstable[1] -- (except for sparc, but I'll ignore that for now.) libguestfs on the other hand currently fails launching the appliance (necessary for running tests) on everything but x86 and mips. Apparently, qemu-system-arm

...nt mic_msi_irq_info_show(struct seq_file *s, void *pos) } return 0; - } static int mic_msi_irq_info_debug_open(struct inode *inode, struct file *file) @@ -443,26 +441,23 @@ void mic_create_debug_dir(struct mic_device *mdev) if (!mdev->dbg_dir) return; - debugfs_create_file("log_buf", 0444, mdev->dbg_dir, - mdev, &log_buf_ops); + debugfs_create_file("log_buf", 0444, mdev->dbg_dir, mdev, &log_buf_ops); - debugfs_create_file("smpt", 0444, mdev->dbg_dir, - mdev, &smpt_file_ops); + debugfs_create_file("smpt", 0444, mdev-&...

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

...extern void console_unblank(void); extern struct tty_driver *console_device(int *); diff --git a/kernel/printk.c b/kernel/printk.c index 53d9a9e..ef85a8e 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -97,7 +97,7 @@ static int console_locked, console_suspended; /* * logbuf_lock protects log_buf, log_start, log_end, con_start and logged_chars * It is also used in interesting ways to provide interlocking in - * release_console_sem(). + * console_unlock();. */ static DEFINE_SPINLOCK(logbuf_lock); @@ -501,7 +501,7 @@ static void _call_console_drivers(unsigned start, /* * Call the co...

...extern void console_unblank(void); extern struct tty_driver *console_device(int *); diff --git a/kernel/printk.c b/kernel/printk.c index 53d9a9e..ef85a8e 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -97,7 +97,7 @@ static int console_locked, console_suspended; /* * logbuf_lock protects log_buf, log_start, log_end, con_start and logged_chars * It is also used in interesting ways to provide interlocking in - * release_console_sem(). + * console_unlock();. */ static DEFINE_SPINLOCK(logbuf_lock); @@ -501,7 +501,7 @@ static void _call_console_drivers(unsigned start, /* * Call the co...

...extern void console_unblank(void); extern struct tty_driver *console_device(int *); diff --git a/kernel/printk.c b/kernel/printk.c index 53d9a9e..ef85a8e 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -97,7 +97,7 @@ static int console_locked, console_suspended; /* * logbuf_lock protects log_buf, log_start, log_end, con_start and logged_chars * It is also used in interesting ways to provide interlocking in - * release_console_sem(). + * console_unlock();. */ static DEFINE_SPINLOCK(logbuf_lock); @@ -501,7 +501,7 @@ static void _call_console_drivers(unsigned start, /* * Call the co...

...p.dutt at intel.com> +Description: + When read, this sysfs entry provides the current bootmode for + the card. This sysfs entry can be written with the following + valid strings: + a) linux - Boot a Linux image. + b) elf - Boot an elf image for flash updates. + +What: /sys/class/mic/mic(x)/log_buf_addr +Date: August 2013 +KernelVersion: 3.11 +Contact: Sudeep Dutt <sudeep.dutt at intel.com> +Description: + An Intel MIC device runs a Linux OS during its operation. For + debugging purpose and early kernel boot messages, the user can + access the card OS log buffer via debugfs. When re...

The following series of patches fill in most of the gaps in the OCaml bindings to libxl, to make them useful for clients such as xapi/xenopsd (from XCP). There are a number of bugfixes to the existing bindings as well. I have an experimental version of xenopsd that successfully uses the new bindings. An earlier version of the first half of the series was submitted to the last by Ian Campbell on

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)