CPU:Phytium,S2500/64 C00
内核版本：4.19.90-25.10
网讯网卡：txgbe
共两台设备，光纤直连
设备A、B分别执行以下操作，即可复现
modprobe fcoe
systemctl start lldpad
systemctl start fcoe
重启问题是SCSI存储模块libfcoe中fcoe_ctlr_timer_work（drivers/scsi/fcoe/fcoe_ctlr.c）函数访问了非法的内存地址，地址异常原因是编码问题导致，使用结构体强制赋值而忽略了list指针成员的值。
麒麟4.19.90 25.10版本，开启CONFIG_FCOE后，加载txgbe系统发生重启，查看系统日志未发现异常信息，需要抓取串口信息
串口信息抓取失败，内核在bios阶段串口日志正常，但内核阶段无输出，根据日志可知console enable时ttyS1还未创建。（4.19.90 25.10 51.40现象一样）
[root@compute ~]# dmesg | grep tty
[ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.19.90-51.0.v2207.fortest.ky10.aarch64 root=/dev/mapper/klas-root ro crashkernel=auto rd.lvm.lv=klas/root rd.lvm.lv=klas/swap acpi=on video=VGA-1:640x480-32@60me smmu.bypassdev=0x1000:0x17 smmu.bypassdev=0x1000:0x15 crashkernel=1024M,high video=efifb:off video=VGA-1:640x480-32@60me console=ttyS1,115200 loglevel=7
[ 14.695352] 00:02: ttyS0 at MMIO 0x200002f8 (irq = 0, base_baud = 115200) is a 16550A
[ 15.478192] console [ttyS0] enabled
[ 15.479627] HISI0031:00: ttyS1 at MMIO 0x28001000 (irq = 7, base_baud = 3125000) is a 16550A
[ 90.445804] audit: type=1300 audit(1676610550.480:126): arch=c00000b7 syscall=105 success=yes exit=0 a0=aaaaf7e3bcb0 a1=2ab7 a2=aaaae0aff1c8 a3=aaaaf7e322d0 items=0 ppid=3107 pid=5502 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="modprobe" exe="/usr/bin/kmod" key=(null)
[ 182.268682] audit: type=1006 audit(1676610660.130:141): pid=5598 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=1 res=1
[ 333.116270] audit: type=1006 audit(1676610810.970:231): pid=6326 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=3 res=1
kdump部署命令:
yum install -y kexec-tools
systemctl restart kdump.service
kdumpctl restart
4.19.90 25.10 kdump 宕机
4.19.90 51.40 kdump 测试正常
1950 [ 811.607882] Unable to handle kernel paging request at virtual address fffffffffffffed8
1951 [ 811.608613] Mem abort info:
1952 [ 811.608882] ESR = 0x96000005
1953 [ 811.609175] Exception class = DABT (current EL), IL = 32 bits
1954 [ 811.609697] SET = 0, FnV = 0
1955 [ 811.609989] EA = 0, S1PTW = 0
1956 [ 811.610285] Data abort info:
1957 [ 811.610576] ISV = 0, ISS = 0x00000005
1958 [ 811.610933] CM = 0, WnR = 0
1959 [ 811.611219] swapper pgtable: 64k pages, 48-bit VAs, pgdp = 000000003e78cc5f
1960 [ 811.611855] [fffffffffffffed8] pgd=0000000000000000, pud=0000000000000000
1961 [ 811.612454] Internal error: Oops: 96000005 [#1] SMP
1962 [ 811.612930] Modules linked in: qedf qed crc8 fcoe libfcoe libfc scsi_transport_fc xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6table_f ilter ip6_tables iptable_filter tun ebtable_filter ebtable_nat ebtables iptable_raw iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi br_netfilter bridge 8021q garp mrp ipmi_ssif stp rfkill llc sunrpc vfat fat aes_ce_blk crypto_simd cryptd aes_ce_cipher crct10dif _ce ghash_ce joydev ch341 ses sha2_ce usbserial sha256_arm64 enclosure txgbe ngbe sha1_ce sbsa_gwdt ipmi_si ipmi_devintf ipmi_msghandler sch_fq_codel ip_tables megaraid_sas ast dm_mirror dm_region_hash dm_log gb
1963 [ 811.618343] Process kworker/6:2 (pid: 1264, stack limit = 0x0000000070e328c3)
1964 [ 811.618970] CPU: 6 PID: 1264 Comm: kworker/6:2 Kdump: loaded Not tainted 4.19.90-51.0.v2207.fortest.ky10.aarch64 #1
1965 [ 811.619951] Source Version: 8a40033b0116040c501be072732bf7ac6ebdb4f7
1966 [ 811.620504] Hardware name: \xe4\xb8\xad\xe5\x9b\xbd\xe9\x95\xbf\xe5\x9f\x8e\xe7\xa7\x91\xe6\x8a\x80\xe9\x9b\x86\xe5\x9b\xa2\xe8\x82\xa1\xe4\xbb\xbd\xe6\x9c\x89\xe9\x99\x90\xe5\x85\xac\xe5\x8f\xb8 \xe6\x93\x8e\xe5\xa4\xa9EF862/GW-748E2A-FTG,
1967 [ 811.621673] Workqueue: events fcoe_ctlr_timer_work [libfcoe]
1968 [ 811.622203] pstate: a0000005 (NzCv daif -PAN -UAO)
1969 [ 811.622640] pc : fcoe_ctlr_timer_work+0x988/0xd30 [libfcoe]
1970 [ 811.623165] lr : fcoe_ctlr_timer_work+0x934/0xd30 [libfcoe]
1971 [ 811.623698] sp : ffffb5c314a17cf0
1972 [ 811.624001] x29: ffffb5c314a17cf0 x28: ffffb81b23c91a50
1973 [ 811.624518] x27: ffff288838b08910 x26: ffffb81b23c91a68
1974 [ 811.625005] x25: 000000010000c5a1 x24: ffffb7db23311e08
1975 [ 811.625547] x23: ffffb81b23c91a08 x22: ffff2888802b5000
1976 [ 811.626025] x21: ffffb7db23311c80 x20: fffffffffffffec8
1977 [ 811.626543] x19: ffffb5c30f555010 x18: ffffffffffffffff
1978 [ 811.627129] x17: 0000000000000000 x16: 0000000000000000
1979 [ 811.627630] x15: ffff2888802b5a38 x14: ffff288900b6cb8f
1980 [ 811.628112] x13: ffff288880b6cba2 x12: ffff28888092f918
1981 [ 811.628618] x11: 0000000000000040 x10: ffff288880927e40
1982 [ 811.629086] x9 : ffff288880927e38 x8 : ffffb5bb0000c8e8
1983 [ 811.629561] x7 : fefefefefefefeff x6 : 0000000000000000
1984 [ 811.630027] x5 : 000073746e657665 x4 : 0000000000000006
1985 [ 811.630499] x3 : 0000000000000000 x2 : ffffb5c3144c7200
1986 [ 811.631000] x1 : 0000000000000000 x0 : 0000000000000000
1987 [ 811.631474] Call trace:
1988 [ 811.631753] fcoe_ctlr_timer_work+0x988/0xd30 [libfcoe]
1989 [ 811.632238] process_one_work+0x1fc/0x490
1990 [ 811.632655] worker_thread+0x50/0x4b8
1991 [ 811.633001] kthread+0x134/0x138
1992 [ 811.633315] ret_from_fork+0x10/0x18
1993 [ 811.633659] Code: f9409e80 d104e014 eb00039f 540003e0 (b9401283)
1994 [ 811.634313] SMP: stopping secondary CPUs
1995 [ 811.643778] Starting crashdump kernel...
1996 [ 811.644615] Bye!
WARNING: kernel relocated [99295086MB]: patching 104404 gdb minimal_symbol values
KERNEL: /lib/debug/lib/modules/4.19.90-51.0.v2207.fortest.ky10.aarch64/vmlinux
DUMPFILE: /var/crash/127.0.0.1-2023-02-17-11:02:11/vmcore [PARTIAL DUMP]
CPUS: 128
DATE: Fri Feb 17 10:58:52 CST 2023
UPTIME: 00:57:06
LOAD AVERAGE: 1.01, 0.23, 0.08
TASKS: 1555
NODENAME: localhost.localdomain
RELEASE: 4.19.90-51.0.v2207.fortest.ky10.aarch64
VERSION: #1 SMP Thu Feb 16 14:14:39 CST 2023
MACHINE: aarch64 (unknown Mhz)
MEMORY: 127.8 GB
PANIC: "Unable to handle kernel paging request at virtual address fffffffffffffed8"
PID: 810
COMMAND: "kworker/122:1"
TASK: ffff870061ec1300 [THREAD_INFO: ffff870061ec1300]
CPU: 122
STATE: TASK_RUNNING (PANIC)
crash>
pc指针指向fcoe_ctlr_timer_work+0x988/0xd30 , 对应汇编代码
crash> bt
PID: 810 TASK: ffff870061ec1300 CPU: 122 COMMAND: "kworker/122:1"
#0 [ffff870061f3f7e0] machine_kexec at ffff5eb1feed40c4
#1 [ffff870061f3f840] __crash_kexec at ffff5eb1feff4708
#2 [ffff870061f3f9d0] crash_kexec at ffff5eb1feff4830
#3 [ffff870061f3fa00] die at ffff5eb1feebfe9c
#4 [ffff870061f3fa40] die_kernel_fault at ffff5eb1feee3634
#5 [ffff870061f3fa70] __do_kernel_fault at ffff5eb1feee32d8
#6 [ffff870061f3faa0] do_translation_fault at ffff5eb1ffb0c22c
#7 [ffff870061f3fad0] do_mem_abort at ffff5eb1feeb130c
#8 [ffff870061f3fcd0] el1_ia at ffff5eb1feeb310c
PC: ffff5eb1bd8d513c [fcoe_ctlr_timer_work+3180]
LR: ffff5eb1bd8d513c [fcoe_ctlr_timer_work+3180]
SP: ffff870061f3fce0 PSTATE: 40000005
X29: ffff870061f3fce0 X28: ffff84a8510d1410 X27: ffff5eb1bd8e0e98
X26: fffffffffffffec8 X25: ffff5eb1bd8e0248 X24: ffff8700630cc480
X23: 000000010004c592 X22: ffff5eb1bd8e0000 X21: ffff5eb1bd8e0000
X20: ffff8700630cc608 X19: ffff5eb200135000 X18: ffffffffffffffff
X17: 0000000000000001 X16: 0000000000000007 X15: ffff5eb200135a38
X14: ffff5eb2809ecb8f X13: ffff5eb2009ecba2 X12: ffff5eb2007af918
X11: 0000000005f5e0ff X10: ffff5eb200785b70 X9: ffff5eb200350018
X8: ffff5eb1ff63f658 X7: 6c74635f656f6366 X6: 0000000000000773
X5: ffff8709fc3a1500 X4: 0000000000000006 X3: ffff8709fc3a1500
X2: 32ccc9c32ff8a200 X1: 0000000000000000 X0: 0000000000000017
#9 [ffff870061f3fce0] fcoe_ctlr_timer_work at ffff5eb1bd8d5138 [libfcoe]
#10 [ffff870061f3fdb0] process_one_work at ffff5eb1fef477a0
#11 [ffff870061f3fe00] worker_thread at ffff5eb1fef47a84
#12 [ffff870061f3fe70] kthread at ffff5eb1fef4f7e0
crash> dis -l ffff5eb1bd8d513c
0xffff5eb1bd8d513c <fcoe_ctlr_timer_work+3180>: ldr w4, [x26,#16]
crash>
drivers/scsi/fcoe/fcoe_ctlr.c：fcoe_ctlr_timer_work函数对应内核模块drivers/scsi/fcoe/libfcoe.ko
加载libfcoe、libfc模块
crash> mod -s libfcoe
MODULE NAME SIZE OBJECT FILE
ffff5eb1bd8f0680 libfcoe 262144 /usr/lib/debug/usr/lib/modules/4.19.90-51.0.v2207.fortest.ky10.aarch64/kernel/drivers/scsi/fcoe/libfcoe.ko.debug
crash> mod -s libfc
MODULE NAME SIZE OBJECT FILE
ffff5369cc050bc0 libfc 327680 /usr/lib/debug/usr/lib/modules/4.19.90-51.0.v2207.fortest.ky10.aarch64/kernel/drivers/scsi/libfc/libfc.ko.debug
通过在fcoe_ctlr_timer_work函数中增加调试信息(scsi/libfc/libfc.ko、scsi/fcoe/libfcoe.ko、scsi/bnx2fc/bnx2fc.ko等模块也添加了调试信息)
陪测端
modprobe fcoe
systemctl start lldpad
systemctl start fcoe
被测端
modprobe scsi_transport_fc
insmod libfc.ko debug_logging=0xff
insmod libfcoe3.ko debug_logging=0xff
modprobe cnic
insmod bnx2fc.ko debug_logging=0xff
modprobe fcoe
systemctl start lldpad
systemctl start fcoe
static void fcoe_ctlr_vn_disc(struct fcoe_ctlr *fip)
{
struct fc_lport *lport = fip->lp;
struct fc_disc *disc = &lport->disc;
struct fc_rport_priv *rdata;
struct fcoe_rport *frport;
void (*callback)(struct fc_lport *, enum fc_disc_event);
printk("%s-%d \n", __func__, __LINE__);
mutex_lock(&disc->disc_mutex);
printk("%s-%d \n", __func__, __LINE__);
callback = disc->pending ? disc->disc_callback : NULL;
disc->pending = 0;
printk("%s-%d \n", __func__, __LINE__);
list_for_each_entry_rcu(rdata, &disc->rports, peers) {
printk("%s-%d rdata 0x%llx \n", __func__, __LINE__, (long long) rdata);
if (!kref_get_unless_zero(&rdata->kref)) {
printk("%s-%d \n", __func__, __LINE__);
continue;
}
......
[ 1403.774784] fc_rport_create-173
[ 1403.775174] host1: Assigned Port ID 005b49
[ 1403.775483] fc_rport_create-176 rdata 0xffffec6d50468800 lport 0xffffecc562e98a08
[ 1403.775900] host1: lport 005b49: Entered READY from state FLOGI
[ 1403.776661] fcoe_ctlr_vn_add-2536 rdata 0xffffec6d50468800
[ 1403.777796] host1: fip: vn_add rport 00f848 new state 0
[ 1403.777804] fcoe_ctlr_timer_work-1820
[ 1403.777811] fcoe_ctlr_timer_work-1822
[ 1403.779145] fcoe_ctlr_timer_work-1824
[ 1403.779607] fcoe_ctlr_vn_timeout-3147
[ 1403.779998] fcoe_ctlr_vn_timeout-3149
[ 1403.780366] fcoe_ctlr_vn_timeout-3178
[ 1403.780766] fcoe_ctlr_vn_timeout-3183
[ 1403.781161] fcoe_ctlr_vn_timeout-3185
[ 1403.781571] fcoe_ctlr_vn_timeout-3196
[ 1403.781971] fcoe_ctlr_vn_disc-3099
[ 1403.782345] fcoe_ctlr_vn_disc-3101
[ 1403.782731] fcoe_ctlr_vn_disc-3104
[ 1403.783096] fcoe_ctlr_vn_disc-3106 rdata 0xffffec6d50468800
[ 1403.784697] fcoe_ctlr_vn_disc-3115
[ 1403.785090] fcoe_ctlr_vn_disc-3106 rdata 0xfffffffffffffec8
[ 1403.785621] Unable to handle kernel paging request at virtual address fffffffffffffed8
crash> struct -o fc_rport_priv
struct fc_rport_priv {
[0] struct fc_lport *local_port;
[8] struct fc_rport *rport;
[16] struct kref kref;
......
}
SIZE: 432
由于&rdata->kref(0xfffffffffffffed8) == rdata(0xfffffffffffffec8) + 16，
因此程序出错位置为if (!kref_get_unless_zero(&rdata->kref)) {
可以确定的是&disc->rports链表中遍历出了2个rdata,第2个rdata是一个错误的地址，然而根据日志显示fc_rport_create-176 rdata 0xffffec6d50468800 lport 0xffffecc562e98a08 rdata只被创建了1次。
值得说明的是任何一次复现问题第2个rdata始终为0xfffffffffffffec8, 在代码中添加以下过滤条件：
list_for_each_entry_rcu(rdata, &disc->rports, peers) {
if ((long long)rdata == 0xfffffffffffffec8) {
printk("%s-%d rdata 0x%llx break\n", __func__, __LINE__, (long long) rdata);
break;
}
不会触发重启问题，但无法确定FCOE功能是否可用，影响域未知，该方案仅用于调试。
后续测试上述方案依然存在地址异常问题
在fcoe_ctlr_vn_add、fc_disc_init、fc_rport_create中定位异常点，添加调试信息确定&lport->disc.rports列表是否被正常初始化，并在多处遍历&lport->disc.rports以确定异常地址0xfffffffffffffec8是何时进入该列表的。
drivers/scsi/fcoe/fcoe_ctlr.c
static void fcoe_ctlr_vn_add(struct fcoe_ctlr *fip, struct fc_rport_priv *new) {
... ...
frport = fcoe_ctlr_rport(rdata);
LIBFCOE_FIP_DBG(fip, "vn_add rport %6.6x %s state %d\n",
port_id, frport->fcoe_len ? "old" : "new",
rdata->rp_state);
list_for_each_entry_rcu(tmprdata, &lport->disc.rports, peers) {
printk("%s-%d rdata 0x%llx lport 0x%llx rports 0x%llx\n", __func__, __LINE__,
(long long) tmprdata, (long long) lport, (long long) &lport->disc.rports);
}
//*frport = *fcoe_ctlr_rport(new);
printk("%s-%d frport 0x%llx *frport 0x%llx fcoe_ctlr_rport(new) 0x%llx *fcoe_ctlr_rport(new) 0x%llx\n",
__func__, __LINE__, (long long) frport, (long long) &(*frport),
(long long)(fcoe_ctlr_rport(new)), (long long)&(*fcoe_ctlr_rport(new)));
list_for_each_entry_rcu(tmprdata, &lport->disc.rports, peers) {
printk("%s-%d rdata 0x%llx lport 0x%llx rports 0x%llx\n", __func__, __LINE__,
(long long) tmprdata, (long long) lport, (long long) &lport->disc.rports);
}
frport = fcoe_ctlr_rport(new);
frport->time = 0;
list_for_each_entry_rcu(tmprdata, &lport->disc.rports, peers) {
printk("%s-%d rdata 0x%llx lport 0x%llx rports 0x%llx\n", __func__, __LINE__,
(long long) tmprdata, (long long) lport, (long long) &lport->disc.rports);
}
}
[ 1437.536857] fc_rport_create-182 rdata 0xffffd1aa9dedf400 lport 0xffffd202a4a0da08 rports 0xffffd202a4a0da50
[ 1437.538199] fcoe_ctlr_vn_add-2527 rdata 0xffffd1aa9dedf400 lport 0xffffd202a4a0da08 rports 0xffffd202a4a0da50
[ 1437.539130] fcoe_ctlr_vn_add-2540 rdata 0xffffd1aa9dedf400 lport 0xffffd202a4a0da08 rports 0xffffd202a4a0da50
[ 1437.539963] fcoe_ctlr_vn_add-2554 rdata 0xffffd1aa9dedf400 lport 0xffffd202a4a0da08 rports 0xffffd202a4a0da50
[ 1437.540916] fcoe_ctlr_vn_add-2560 frport 0xffffd1aa9dedf400 *frport 0xffffd1aa9dedf400 fcoe_ctlr_rport(new) 0xffffd1aa8b04bb28 *fcoe_ctlr_rport(new) 0xffffd1aa8b04bb28
[ 1437.542148] fcoe_ctlr_vn_add-2563 rdata 0xffffd1aa9dedf400 lport 0xffffd202a4a0da08 rports 0xffffd202a4a0da50
定位发现*frport = *fcoe_ctlr_rport(new); 该代码执行后遍历&lport->disc.rports，出现了异常地址节点0xfffffffffffffec8,去掉该代码后地址正常
frport = fcoe_ctlr_rport(rdata); frport是rdata（fc_rport_priv）父类结构体fcoe_rportA指针
*frport = *fcoe_ctlr_rport(new);将new(fc_rport_priv)父类结构体fcoe_rportB赋值给rdata（fc_rport_priv）父类结构体fcoe_rportA，但是由于fcoe_rportA.rdata.peers已经加入链表&lport->disc.rports,该赋值会破坏fcoe_rportA.rdata.peers指针内容，从而导致&lport->disc.rports中地址异常。
static inline struct fcoe_rport *fcoe_ctlr_rport(struct fc_rport_priv *rdata)
{
return container_of(rdata, struct fcoe_rport, rdata);
}
struct fcoe_rport {
struct fc_rport_priv rdata;
unsigned long time;
u16 fcoe_len;
u16 flags;
u8 login_count;
u8 enode_mac[ETH_ALEN];
u8 vn_mac[ETH_ALEN];
};
struct fc_rport_priv {
struct fc_lport *local_port;
struct fc_rport *rport;
struct kref kref;
enum fc_rport_state rp_state;
struct fc_rport_identifiers ids;
u16 flags;
u16 max_seq;
u16 disc_id;
u16 maxframe_size;
unsigned int retries;
unsigned int major_retries;
unsigned int e_d_tov;
unsigned int r_a_tov;
struct mutex rp_mutex;
struct delayed_work retry_work;
enum fc_rport_event event;
struct fc_rport_operations *ops;
struct list_head peers;
struct work_struct event_work;
u32 supported_classes;
u16 prli_count;
struct rcu_head rcu;
u16 sp_features;
u8 spp_type;
void (*lld_event_callback)(struct fc_lport *,
struct fc_rport_priv *,
enum fc_rport_event);
};
此处不直接使用强制结构体赋值，替换为结构体成员手动赋值
- *frport = *fcoe_ctlr_rport(new);
+ frport->fcoe_len = new->fcoe_len;
+ frport->flags = new->flags;
+ frport->login_count = new->login_count;
+ memcpy(frport->enode_mac, new->enode_mac, ETH_ALEN);
+ memcpy(frport->vn_mac, new->vn_mac, ETH_ALEN);
测试正常，不在重启，经排查该问题在开源社区版内核已有成熟的补丁方案https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d478418703d6bcdd163d5d8127683c6c471539f0
scsi: fcoe: pass in fcoe_rport structure instead of fc_rport_priv
Instead of using the generic 'fc_rport_priv' structure as argument and then
having to painstakingly outcast this to fcoe_rport we should be passing the
fcoe_rport structure itself and reduce complexity.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
很好奇，就使用rubyonrails自动化单元测试而言，你们正在做什么？您是否创建了一个脚本来在cron中运行rake作业并将结果邮寄给您？git中的预提交Hook？只是手动调用？我完全理解测试，但想知道在错误发生之前捕获错误的最佳实践是什么。让我们理所当然地认为测试本身是完美无缺的，并且可以正常工作。下一步是什么以确保他们在正确的时间将可能有害的结果传达给您？ 最佳答案 不确定您到底想听什么，但是有几个级别的自动代码库控制:在处理某项功能时，您可以使用类似autotest的内容获得关于哪些有效，哪些无效的即时反馈。要确保您的提
我正在编写一个包含C扩展的gem。通常当我写一个gem时，我会遵循TDD的过程，我会写一个失败的规范，然后处理代码直到它通过，等等......在“ext/mygem/mygem.c”中我的C扩展和在gemspec的“扩展”中配置的有效extconf.rb，如何运行我的规范并仍然加载我的C扩展？当我更改C代码时，我需要采取哪些步骤来重新编译代码？这可能是个愚蠢的问题，但是从我的gem的开发源代码树中输入“bundleinstall”不会构建任何native扩展。当我手动运行rubyext/mygem/extconf.rb时，我确实得到了一个Makefile(在整个项目的根目录中)，然后当
我有一个奇怪的问题:我在rvm上安装了rubyonrails。一切正常，我可以创建项目。但是在我输入“railsnew”时重新启动后，我有“程序'rails'当前未安装。”。SystemUbuntu12.04ruby-v"1.9.3p194"gemlistactionmailer(3.2.5)actionpack(3.2.5)activemodel(3.2.5)activerecord(3.2.5)activeresource(3.2.5)activesupport(3.2.5)arel(3.0.2)builder(3.0.0)bundler(1.1.4)coffee-rails(
我有一个围绕一些对象的包装类，我想将这些对象用作散列中的键。包装对象和解包装对象应映射到相同的键。一个简单的例子是这样的:classAattr_reader:xdefinitialize(inner)@inner=innerenddefx;@inner.x;enddef==(other)@inner.x==other.xendenda=A.new(o)#oisjustanyobjectthatallowso.xb=A.new(o)h={a=>5}ph[a]#5ph[b]#nil,shouldbe5ph[o]#nil,shouldbe5我试过==、===、eq?并散列所有无济于事。
我的瘦服务器配置了nginx，我的ROR应用程序正在它们上运行。在我发布代码更新时运行thinrestart会给我的应用程序带来一些停机时间。我试图弄清楚如何优雅地重启正在运行的Thin实例，但找不到好的解决方案。有没有人能做到这一点？ 最佳答案 #Restartjustthethinserverdescribedbythatconfigsudothin-C/etc/thin/mysite.ymlrestartNginx将继续运行并代理请求。如果您将Nginx设置为使用多个上游服务器，例如server{listen80;server
我有一些Ruby代码，如下所示:Something.createdo|x|x.foo=barend我想编写一个测试，它使用double代替block参数x，这样我就可以调用:x_double.should_receive(:foo).with("whatever").这可能吗？ 最佳答案 specify'something'dox=doublex.should_receive(:foo=).with("whatever")Something.should_receive(:create).and_yield(x)#callthere
Sinatra新手；我正在运行一些rspec测试，但在日志中收到了一堆不需要的噪音。如何消除日志中过多的噪音？我仔细检查了环境是否设置为:test，这意味着记录器级别应设置为WARN而不是DEBUG。spec_helper:require"./app"require"sinatra"require"rspec"require"rack/test"require"database_cleaner"require"factory_girl"set:environment,:testFactoryGirl.definition_file_paths=%w{./factories./test/
我遵循MichaelHartl的“RubyonRails教程:学习Web开发”，并创建了检查用户名和电子邮件长度有效性的测试(名称最多50个字符，电子邮件最多255个字符)。test/helpers/application_helper_test.rb的内容是:require'test_helper'classApplicationHelperTest在运行bundleexecraketest时，所有测试都通过了，但我看到以下消息在最后被标记为错误:ERROR["test_full_title_helper",ApplicationHelperTest,1.820016791]test
我已经构建了一些serverspec代码来在多个主机上运行一组测试。问题是当任何测试失败时，测试会在当前主机停止。即使测试失败，我也希望它继续在所有主机上运行。Rakefile:namespace:specdotask:all=>hosts.map{|h|'spec:'+h.split('.')[0]}hosts.eachdo|host|begindesc"Runserverspecto#{host}"RSpec::Core::RakeTask.new(host)do|t|ENV['TARGET_HOST']=hostt.pattern="spec/cfengine3/*_spec.r
我在app/helpers/sessions_helper.rb中有一个帮助程序文件，其中包含一个方法my_preference，它返回当前登录用户的首选项。我想在集成测试中访问该方法。例如，这样我就可以在测试中使用getuser_path(my_preference)。在其他帖子中，我读到这可以通过在测试文件中包含requiresessions_helper来实现，但我仍然收到错误NameError:undefinedlocalvariableormethod'my_preference'.我做错了什么？require'test_helper'require'sessions_hel