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Postings by wuzhouhui

Where is centos6.x kernel git repo

Hi, I following the steps described in <a href="https://wiki.centos.org/Sources" title="https://wiki.centos.org/Sources">https://wiki.centos.org/Sources</a>
to get centos7.x kernel repo. But I'm wondering how to get centos6.x
kernel repo. Because when checkout branch 'c6' and found that there is
nothing.

Thanks

centos 7.5 crashed, kernel BUG at net/core/skbuff.c:3668!

...
[ 176.025679] random: crng init done
[ 411.168635] netem: version 1.3
[ 456.059840] ------------[ cut here ]------------
[ 456.059849] WARNING: CPU: 4 PID: 1918 at net/ipv4/tcp_output.c:1048 tcp_set_skb_tso_segs+0xeb/0x100
[ 456.059851] Modules linked in: sch_netem cirrus ttm drm_kms_helper crc32_pclmul syscopyarea ghash_clmulni_intel sysfillrect sysimgblt fb_sys_fops aesni_intel lrw ppdev gf128mul drm glue_helper ablk_helper cryptd parport_pc parport i2c_piix4 virtio_balloon i2c_core joydev pcspkr ip_tables ext4 mbcache jbd2 ata_generic pata_acpi ata_piix virtio_console virtio_net vi

Fw: Re: [SPDK] VM boot failed sometimes if using vhost-user-blk with spdk

Forwarded to centos mailing list

Sent Time: 2018-10-30 14:06:00 (Tuesday)
Cc: <a href="mailto: ... at centos dot org"> ... at centos dot org</a>, <a href="mailto:qemu- ... at nongnu dot org">qemu- ... at nongnu dot org</a>

I enable debug of systemd-udevd by changing guest's /etc/udev/udev.conf to this:
udev_log="debug"
and regenerate initramfs. Then, we can get more message about this issue.

CentOS 7.4 paniced when running LTP tests

LTP version: ltp-full-20180118
Kernel version: 3.10.0-693.el7.x86_64
Reproduce procedure:
1. cd ltp-full-20180118; ./configure; make && make install
2.

How to update modules in iniramfs fastly

I know dracut can update modules in initramfs, but I think it is too
slow. So I'm wondering what is the fastest way to update modules in
initramfs of CentOS 7?

Thanks!

Network broke for a while when libvirtd start

When start service libvirtd by

service libvirtd start

the network will broke for a while and then reconnected.

Adjust type of rw in submit_bio from int to unsigned long

Hi, I am a developer who worked on CentOS. Recently I am working on porting one of my
block drivers from CentOS 6.x to CentOS 7.x.

soft lockup after set multicast_router of bridge and it's port to 2

After I set multicast_router of bridge and it's port to 2, like following:
echo 2 > /sys/devices/virtual/net/eth81/bridge/multicast_router
echo 2 > /sys/devices/virtual/net/bond2/brport/multicast_router
Then soft lockup occured:
Message from syslogd@node-0 at Jan 9 15:47:12 ...
kernel:BUG: soft lockup - CPU#0 stuck for 61s!

Can't see register value in crash vmcore

Kernel crashed by panic("string"), but I can't see any register in vmcore:

crash> bt
PID: 53331 TASK: ffff880c523ed540 CPU: 2 COMMAND: "bw_sd-ar-7-0_2"
#0 [ffff880c4f12f978] machine_kexec at ffffffff81038ed9
#1 [ffff880c4f12f9d8] crash_kexec at ffffffff810c5a82
#2 [ffff880c4f12faa8] panic at ffffffff815113b2
#3 [ffff880c4f12fb28] sd_submit_bio at ffffffffa0747a02 [sd]
#4 [ffff880c4f12fb68] submit_clone_bio at ffffffffa0747d2b [sd]
#5 [ffff880c4f12fb78] split_and_submit_bio_for_cbd at ffffffffa0747ec9 [sd]
#6 [ffff880c4f12fbf8] sd_make_request at ffffffffa074c812 [sd]
#7 [ffff880c4

Null deference panic in CentOS-6.5

Hi,

I got a panic when running CentOS-6.5:

crash> bt
PID: 106074 TASK: ffff8839c1e32ae0 CPU: 4 COMMAND: "flushd4[cbd-sd-"
#0 [ffff8839c2a91900] machine_kexec at ffffffff81038fa9
#1 [ffff8839c2a91960] crash_kexec at ffffffff810c5992
#2 [ffff8839c2a91a30] oops_end at ffffffff81515c90
#3 [ffff8839c2a91a60] no_context at ffffffff81049f1b
#4 [ffff8839c2a91ab0] __bad_area_nosemaphore at ffffffff8104a1a5
#5 [ffff8839c2a91b00] bad_area_nosemaphore at ffffffff8104a273
#6 [ffff8839c2a91b10] __do_page_fault at ffffffff8104a9bf
#7 [ffff8839c2a91c30] do_page_fault at ffffffff8